Home Health Billing Guide: Medicare PDGM, NOA, Claims, and Denial Prevention

This guide explains the practical home health billing workflow for U.S. home health agencies, including Medicare eligibility, the Patient-Driven Groupings Model, Notice of Admission requirements, claim structure, common revenue and HCPCS codes, documentation controls, denial prevention, accounts receivable follow-up, and key 2026 updates. Use it as an operational reference, not legal, clinical, reimbursement, or coding advice. Medicare Advantage, Medicaid, commercial payer, and state requirements may differ. Always verify current CMS guidance, Medicare Administrative Contractor instructions, payer policies, contracts, and official coding resources before submitting claims.

What Is Home Health Billing?

Home health billing is the process used by a home health agency to obtain reimbursement for covered skilled services delivered to a patient in the patient's home or another qualifying residential setting. The billing process connects several clinical and administrative functions: referral and intake, insurance eligibility verification, patient qualification review, face-to-face documentation, orders and plan of care, start of care, OASIS assessment, ICD-10-CM diagnosis coding, visit scheduling and documentation, Notice of Admission submission, claim preparation, payment posting, denial management, and accounts receivable follow-up.

Home health billing is different from ordinary physician billing because Medicare usually pays the agency through a bundled prospective payment methodology. The payment is not simply the sum of individual visit charges. Medicare uses patient characteristics, assessment data, diagnoses, admission information, functional status, comorbidities, geography, and other payment adjustments to determine reimbursement. This makes data consistency critical. A claim can be technically complete but still fail because the referral documentation, plan of care, OASIS assessment, diagnosis coding, visit record, or discharge status does not support the billed period.

Home Health Care vs Home Care

Home health care and non-medical home care are not interchangeable. A billing team should identify the service type and payer benefit before admission. Confusing skilled home health with custodial home care can result in incorrect benefit quotes, patient complaints, and non-covered claims.

Home Health Care

Home health care generally involves skilled or qualifying services ordered and delivered under a clinical plan of care. Services may include:

• Skilled nursing
• Physical therapy
• Occupational therapy
• Speech-language pathology
• Medical social services
• Home health aide services when coverage requirements are met
• Certain medical supplies
• Other covered services under the home health benefit

Home health agencies may bill Medicare, Medicare Advantage, Medicaid, commercial insurance, workers' compensation, or other payers, depending on enrollment and contracts.

Non-Medical Home Care

Non-medical home care commonly includes:

• Companionship
• Meal preparation
• Light housekeeping
• Transportation
• Personal assistance
• Custodial support
• Supervision

These services may be private-pay or covered under specific Medicaid waiver, long-term care, or commercial benefit arrangements. They are not automatically covered under the Medicare home health benefit.

Who Qualifies for the Medicare Home Health Benefit?

For Medicare coverage, the record must support all applicable eligibility requirements. The core requirements are below.

1. The Patient Is Confined to the Home

The patient must meet Medicare's homebound criteria. In practical terms, documentation should show why leaving home is restricted because of illness or injury. The record may describe:

• Use of a walker, wheelchair, cane, crutches, or other supportive device
• Need for another person's assistance
• Need for special transportation
• Medical advice against leaving home
• Weakness, pain, dyspnea, cognitive impairment, fall risk, or other clinical barriers
• Why leaving home requires considerable and taxing effort
• Frequency and purpose of any absences from home

A patient does not need to be completely bedridden. Limited, infrequent, short, or medically necessary absences do not automatically eliminate homebound status. Generic statements such as "patient is homebound" or "taxing effort" may not be enough by themselves. The documentation should connect the patient's condition to the practical difficulty of leaving home.

2. The Patient Is Under the Care of a Physician or Allowed Practitioner

The patient must be under the care of a qualified physician or allowed practitioner who is involved in establishing and reviewing the plan of care. The billing file should clearly identify the certifying practitioner, the ordering practitioner, the practitioner NPI, the date of order, the date of certification, signature status, plan-of-care review status, and the recertification due date.

3. The Patient Receives Services Under a Plan of Care

The plan of care should be established and periodically reviewed by the physician or allowed practitioner. It should align with diagnoses, skilled need, frequency and duration of services, the disciplines involved, treatments and interventions, goals, the medication profile, safety risks, functional limitations, homebound status, and discharge planning. Orders, visit frequencies, and claim activity should match the plan of care. Unresolved verbal orders, unsigned changes, or visits outside the authorized frequency can create payment risk.

4. The Patient Needs a Qualifying Skilled Service

The patient must need one or more qualifying services, such as:

• Intermittent skilled nursing that is reasonable and necessary
• Physical therapy
• Speech-language pathology
• A continuing need for occupational therapy after eligibility was established through another qualifying skilled service

Skilled nursing cannot qualify solely because a blood sample is needed through venipuncture. Documentation should explain why the service requires the skills of a qualified professional and cannot safely or effectively be performed by an unskilled person.

5. The Face-to-Face Encounter Requirement Is Met

The face-to-face encounter must generally:

• Occur no more than 90 days before the start of care or within 30 days after the start of care
• Relate to the primary reason the patient needs home health services
• Be performed by an allowed provider type
• Be supported by the actual encounter documentation
• Include the encounter date in the certification record

The agency should obtain the underlying face-to-face note, not only a signed certification form. The note should support the primary reason for home health, the skilled need, and the patient's clinical condition. For 2026, CMS broadened the face-to-face regulation so that physicians, nurse practitioners, clinical nurse specialists, and physician assistants may perform the encounter without the prior regulatory limitation tied to being the certifying practitioner or the practitioner who cared for the patient in the acute or post-acute facility.

Covered Home Health Services

The Medicare home health benefit may include the following when coverage requirements are met.

Skilled Nursing

Examples may include:

• Wound assessment and treatment
• Medication management and teaching
• Disease process education
• Observation and assessment
• Catheter care
• Injection administration
• Skilled management of a complex plan of care
• Patient and caregiver training
• Monitoring of unstable conditions

The note must show the skilled purpose of the visit. Routine or repetitive services without documented skilled need may be challenged.

Physical Therapy

Examples may include gait training, transfer training, strengthening, balance training, mobility assessment, fall prevention, and the development or maintenance of a safe therapy program.

Occupational Therapy

Examples may include activities of daily living training, upper extremity function, home safety, adaptive equipment training, energy conservation, cognitive or functional strategies, and maintenance program development.

Speech-Language Pathology

Examples may include swallowing assessment and treatment, communication treatment, cognitive-communication intervention, and the development or maintenance of a safe treatment program.

Medical Social Services

Services may address social and emotional factors related to the patient's illness and plan of care.

Home Health Aide Services

Home health aide services may be covered when the patient qualifies for the home health benefit and the aide services are reasonable, necessary, and connected to the covered plan of care.

Medical Supplies

Certain supplies may be included in the prospective payment. Billing teams should distinguish routine supplies, non-routine supplies, wound care supplies, DME, and separately payable items according to Medicare rules.

How Medicare Pays Home Health Agencies

Medicare pays home health agencies through the Home Health Prospective Payment System. Under the Patient-Driven Groupings Model, Medicare establishes a national standardized payment for a 30-day period and adjusts it based on the characteristics of the patient and period. Payment may be affected by:

• PDGM case-mix group
• Geographic wage index
• LUPA
• Partial period payment adjustment
• Outlier payment
• Rural add-on, when applicable
• Home Health Value-Based Purchasing adjustment
• Quality reporting compliance
• Late NOA reduction
• Other statutory or regulatory adjustments

The submitted charge amount does not directly determine the Medicare prospective payment. However, accurate charge and visit reporting remains important for compliance, cost reporting, outlier calculation, analytics, and payer reconciliation.

How PDGM Works

The Patient-Driven Groupings Model classifies each 30-day period into one of 432 possible case-mix groups. The five major classification dimensions are below.

1. Admission Source

The period is classified as community or institutional. Institutional status generally depends on whether the patient had a qualifying inpatient or post-acute stay within the applicable lookback period. Billing teams should verify Medicare eligibility and claims history rather than relying only on the referral source.

2. Timing

The period is classified as early or late. The first 30-day period in a sequence is generally early. Subsequent periods are generally late, subject to the applicable admission and gap rules.

3. Clinical Grouping

The principal diagnosis maps the period into one of 12 clinical groups:

• Musculoskeletal rehabilitation
• Neuro or stroke rehabilitation
• Wounds
• Complex nursing interventions
• Behavioral health
• MMTA other
• MMTA cardiac and circulatory
• MMTA endocrine
• MMTA gastrointestinal and genitourinary
• MMTA infectious disease, neoplasms, and blood-forming diseases
• MMTA respiratory
• MMTA surgical aftercare

MMTA means Medication Management, Teaching, and Assessment. The principal diagnosis must explain the main reason for home health services. A diagnosis that does not map to a PDGM clinical group may cause the claim to be returned or require correction.

4. Functional Impairment

The period is assigned a functional level of low, medium, or high. The level is calculated using selected OASIS items. Inconsistent or inaccurate functional documentation can affect both clinical integrity and payment.

5. Comorbidity Adjustment

The period may receive no comorbidity adjustment, a low comorbidity adjustment, or a high comorbidity adjustment. Secondary diagnoses should be reported only when they are documented, relevant, and meet applicable coding rules. Adding unsupported diagnoses to increase payment creates compliance risk.

The 60-Day Certification and 30-Day Payment Periods

Medicare home health operations use two related timeframes.

60-Day Certification Period

The plan of care and certification generally cover a 60-day period. If the patient continues to qualify, the practitioner may recertify the patient for another 60-day period. The agency should maintain controls for certification start and end dates, recertification due dates, plan-of-care signatures, updated orders, continued homebound status, continued skilled need, and updated goals and treatment plan.

30-Day Payment Period

Medicare payment is calculated separately for each 30-day period of care. A typical 60-day certification contains a first 30-day payment period and a second 30-day payment period. Each 30-day period requires its own claim. The diagnoses, visits, HIPPS information, discharge status, and payment classification must be accurate for that period.

A common billing mistake is to treat the 60-day certification as one billing period. The clinical certification may span 60 days, but the Medicare payment and claim cycle operate in 30-day periods.

Notice of Admission Requirements

The Notice of Admission establishes the patient's home health admission in Medicare systems.

When the NOA Can Be Submitted

The agency may submit the NOA after it has:

• Obtained a verbal or written order that includes the services required for the initial visit
• Conducted the initial visit at the start of care

NOA Deadline

The NOA must be submitted to and accepted by the A/B Medicare Administrative Contractor within 5 calendar days after the admission date. The operational target should be earlier than day 5. A strong workflow submits the NOA as soon as the required information is available, then checks that it was accepted.

One NOA per Admission

Only one NOA is generally required for a continuous series of home health periods beginning with admission and ending with discharge. A new NOA is required after discharge if the patient is later readmitted.

NOA Type of Bill

The NOA is generally submitted using TOB 032A. A cancellation is generally submitted using TOB 032D.

Late NOA Consequences

When the NOA is late, Medicare may reduce payment based on the number of days between admission and the date the NOA is submitted and accepted. For LUPA periods, visits occurring before the accepted NOA date may not be paid. The reduction is provider liability and cannot be transferred to the beneficiary. Exceptions may be available in limited circumstances outside the agency's control. The agency should preserve the original submission date, the rejection or return date, error messages, screenshots, the resubmission date, MAC correspondence, an explanation in claim remarks, and evidence of timely corrective action.

Recommended NOA Tracking Fields

Track at least the following fields for every admission.

Submitting the NOA is not enough. The billing team must verify acceptance. Because a late or rejected NOA is one of the largest avoidable payment risks in home health, many agencies assign a dedicated authorization and notification function to own submission, acceptance checks, and exception evidence.

OASIS and Home Health Billing

The Outcome and Assessment Information Set is a standardized assessment used by Medicare-certified home health agencies for applicable patients and assessment time points. OASIS data affects the functional impairment level, case-mix assignment, HIPPS calculation, quality reporting, risk adjustment, care planning, and audit support.

The billing and clinical teams should reconcile:

• Start of care date
• Resumption of care date
• Recertification dates
• Transfer status
• Discharge status
• Diagnoses
• Functional findings
• Therapy need
• Skilled nursing need
• Patient location
• Payer
• Assessment completion and transmission status

Common OASIS Billing Risks

• OASIS was not completed
• OASIS was completed outside the required timeframe
• Assessment was not transmitted or was rejected
• Diagnoses differ between OASIS and the claim
• Functional responses are inconsistent with visit documentation
• Discharge or transfer status is inconsistent
• The claim is released before the assessment is locked or validated
• A resumption of care assessment is missing after an inpatient stay
• The wrong payer or assessment type was selected

Billing staff should not change clinical OASIS responses to achieve a payment result. Questions about inconsistent information should be returned to the qualified clinician through a documented query process.

Home Health Diagnosis Coding

Diagnosis coding is central to PDGM because the principal diagnosis determines the clinical grouping.

Principal Diagnosis

The principal diagnosis should represent the primary reason the patient is receiving home health services during the period. It should be:

• Supported by the medical record
• Consistent with the referral
• Consistent with the face-to-face note
• Addressed in the plan of care
• Reflected in the clinician's assessment
• Eligible for PDGM clinical grouping
• Sequenced according to ICD-10-CM guidelines

A symptom code, vague diagnosis, or condition unrelated to the skilled plan may fail to support the period.

Secondary Diagnoses

Secondary diagnoses may affect the comorbidity adjustment when they meet applicable criteria. Report only conditions that exist and are documented, affect care or treatment, require monitoring, evaluation, or management, are clinically relevant to the plan of care, and meet official coding requirements.

Common Coding Problems

• Principal diagnosis does not map to a PDGM group
• Referral diagnosis copied without confirming the actual reason for care
• Acute diagnosis used after it is no longer current
• Aftercare or status codes sequenced incorrectly
• Wound details are incomplete
• Laterality or encounter character is missing
• Manifestation coding rules are not followed
• Secondary diagnoses are omitted
• Unsupported secondary diagnoses are added
• Diagnosis coding is not updated for the next 30-day period after a documented change
• Claim spans an ICD-10 update and uses an invalid code

Recommended Coding Review

Before billing, confirm:

1. The principal diagnosis matches the primary skilled reason for care.
2. Diagnoses are supported by the face-to-face documentation and plan of care.
3. The diagnosis maps to a valid PDGM clinical group.
4. Secondary diagnoses are clinically relevant and documented.
5. Wounds, fractures, infections, and other conditions have required specificity.
6. The code set is valid for the claim period.
7. The diagnosis sequence matches official ICD-10-CM guidelines.
8. The OASIS, plan of care, and claim are consistent.

Because PDGM payment turns on the principal diagnosis, many agencies route home health charts through dedicated medical coding support to validate grouping before the claim is released.

HIPPS Codes and Revenue Code 0023

Home health claims include one revenue code 0023 line with a Health Insurance Prospective Payment System code. The HIPPS code represents the PDGM classification of the period. The five positions reflect:

1. Admission source and timing
2. Clinical group
3. Functional level
4. Comorbidity level
5. Placeholder position

Medicare uses OASIS and claim data to determine the payment HIPPS code and may replace the code submitted by the agency.

Revenue Code 0023 Controls

• Report only one 0023 line per claim
• Report a valid five-character HIPPS code
• Use the correct service date
• Report zero charges on the 0023 line
• Confirm the claim period and OASIS data are aligned
• Review the paid HIPPS code when posting the remittance

A difference between the submitted HIPPS and paid HIPPS should be reviewed. It may be caused by diagnosis grouping, OASIS data, admission source, timing, comorbidity logic, or another payment edit.

Common Home Health Revenue and HCPCS Codes

The following table summarizes commonly reported Medicare home health visit categories. This is not a complete coding list. Always confirm current CMS instructions and payer policy before using these operationally.

Medicare home health visit units for revenue codes 042x, 043x, 044x, 055x, 056x, and 057x are generally reported in 15-minute increments. The claim should reflect the total covered visit time according to CMS instructions. When more than one nursing or therapy service occurs during a single visit, Medicare generally expects one applicable G-code based on the service that occupied most of the clinician's time, and the units should still reflect the total covered time for the visit.

Telecommunications technology can support the plan of care, but it does not replace the qualifying in-person visit requirements. A claim period containing only telecommunications services and no billable visit is not submitted as a payable home health period.

Medicare Home Health Claim Types

Common home health types of bill include:

The exact transaction and correction method depends on the claim status and Medicare contractor instructions.

Claim Format

Most home health agencies submit Medicare claims through the ASC X12 837 institutional transaction. The paper equivalent is the CMS-1450, commonly called the UB-04. Paper claims are generally limited to providers that qualify for an exception to electronic submission requirements.

Timely Filing

Medicare fee-for-service claims are generally subject to a 12-month or one-calendar-year filing limit. For institutional claims with a span of dates, the applicable claim date rules should be confirmed before relying on the deadline. Operationally, agencies should never use the statutory timely filing deadline as the production target. Claims should be released promptly after the 30-day period closes and required documentation is complete.

Recommended Home Health Billing Workflow

A reliable billing operation connects intake, clinical documentation, coding, scheduling, and claims into one controlled workflow.

1. Referral Intake

Collect patient demographics, referral source, ordering practitioner, the face-to-face note, diagnoses, hospital or facility discharge documents, the medication list, the skilled service requested, the expected start of care, insurance cards, the Medicare Beneficiary Identifier, prior home health agency information, and inpatient or post-acute stay information. Do not admit a patient based only on a basic referral order when required eligibility documentation is missing.

2. Eligibility and Benefits Verification

Verify active coverage, Original Medicare vs Medicare Advantage, the Medicare Advantage plan and payer ID, primary and secondary payer, Medicare Secondary Payer indicators, hospice election, any existing home health admission, inpatient or skilled nursing facility status, deductible and coinsurance information when relevant, authorization or notification requirements, network status, benefit limits, claim address and electronic payer routing, any prior authorization number, and the timely filing limit. For Medicare patients, confirm the MBI immediately before admission to reduce NOA rejection risk. Structured eligibility and benefits verification turns this into a repeatable pre-admission step.

3. Admission and Qualification Review

Before start of care, confirm the available record supports homebound status, skilled need, the under-care requirement, face-to-face timing and relevance, an order for initial services, plan-of-care development, and appropriate provider enrollment. Create a deficiency queue for missing documents and assign ownership.

4. Start of Care

Confirm the initial visit occurred, the start of care date is correct, the order supports the initial service, the OASIS assessment was initiated, practitioner and agency information are accurate, the patient location is documented, the payer is confirmed, and any authorization is active.

5. Submit and Confirm the NOA

Submit the NOA promptly after the initial visit. Then verify accepted status, the correct admission date, the correct MBI, the correct provider number, no overlapping admission issue, and a recorded claim control number. Rejected NOAs should be corrected immediately.

6. Complete OASIS and Coding

The clinical and coding teams should complete the assessment, validate data, confirm the primary reason for care, assign the principal diagnosis, assign supported secondary diagnoses, confirm PDGM clinical grouping, review functional data, resolve documentation queries, and confirm the assessment was accepted.

7. Maintain Orders and Plan of Care

Track initial orders, verbal orders, supplemental orders, frequency changes, missed visits, physician signatures, plan-of-care certification, recertification, therapy reassessments, and discharge orders. Visits outside the ordered frequency or unsupported by the plan should be held for review.

8. Reconcile Visits During the Period

At least weekly, compare the schedule, completed visit notes, missed visit records, orders, payroll or clinician activity, EVV data when applicable, claim-ready visits, the LUPA threshold, authorization limits, patient status, hospitalization, and transfer or discharge events. Do not wait until day 30 to discover missing documentation or an unexpected LUPA.

9. Perform End-of-Period Review

At period close, verify that all visits are documented, all notes are signed, orders support services, OASIS is complete and accepted, diagnoses are current, HIPPS information is valid, revenue codes and HCPCS codes are correct, units match documented time, the location Q-code is reported, discharge status is accurate, transfer or hospitalization is handled correctly, the NOA was accepted, an authorization number is present when required, and no overlapping payer issue exists.

10. Submit the Claim

Submit the clean claim and monitor clearinghouse acceptance, payer acceptance, Medicare return-to-provider status, additional development requests, medical review, payment, reduction or adjustment, and denial.

11. Post Payment and Review Variances

When posting payment, match payment to the correct 30-day period, record the paid HIPPS code, and identify LUPA payment, outlier payment, partial period adjustment, value-based purchasing adjustment, quality reporting reduction, and late NOA reduction. Review contractual adjustments and reconcile sequestration or other reductions when applicable. Payment posting support can post by line and flag variances rather than force-balancing a remittance.

12. Work Denials and Underpayments

Assign the denial by root cause: eligibility, authorization, NOA, coding, OASIS, documentation, medical necessity, overlap, transfer, claim format, timely filing, payer processing, or underpayment. Correct the claim or appeal within the payer's deadline.

Pre-Billing Claim Checklist

Use the following checklist before submitting each 30-day Medicare home health claim.

Patient and Coverage

• Patient name matches Medicare records
• MBI is active and correct
• Date of birth is correct
• Original Medicare is primary for the claim period
• Medicare Advantage enrollment was checked
• Hospice and other home health episodes were checked
• Medicare Secondary Payer information was reviewed
• Patient address and service location are correct

Admission and NOA

• Start of care date is correct
• Initial order was obtained
• Initial visit was completed
• NOA was submitted
• NOA was accepted within 5 calendar days
• Claim control number is recorded
• Any late NOA exception documentation is complete

Eligibility and Certification

• Homebound status is supported
• Skilled need is supported
• Face-to-face encounter is timely
• Face-to-face note relates to the primary reason for care
• Certification is complete
• Plan of care is signed or tracked
• Recertification is complete when applicable

OASIS and Coding

• Correct assessment type was completed
• OASIS was accepted
• Principal diagnosis explains the primary reason for care
• Principal diagnosis maps to PDGM
• Secondary diagnoses are supported
• Coding is valid for the claim dates
• Claim and OASIS data are consistent

Visits and Claim Lines

• All completed visits appear on the claim
• No uncompleted visits appear on the claim
• Visit dates match signed notes
• HCPCS codes match disciplines and service types
• Revenue codes are correct
• Units match covered visit time
• Q5001, Q5002, or Q5009 is correctly reported
• Telecommunications reporting is correct
• Supplies are reported according to CMS instructions
• Only one revenue code 0023 line is present
• HIPPS code is valid
• Revenue code 0023 charge is zero

Period Status

• Statement from and through dates are correct
• Patient discharge status is correct
• Hospitalization was reviewed
• Transfer to another HHA was reviewed
• Discharge and readmission were reviewed
• Potential partial period payment is identified
• LUPA threshold was reviewed
• No visits remain unsigned or unapproved

LUPA Management

A Low Utilization Payment Adjustment occurs when the number of visits in a 30-day period falls below the threshold assigned to the period's case-mix group. Instead of receiving the full case-mix-adjusted 30-day payment, the agency is paid standardized per-visit amounts.

Why LUPAs Occur

• Patient refuses visits
• Patient is hospitalized
• Patient improves faster than expected
• Staffing shortage
• Missed or cancelled visits
• Scheduling error
• Delayed start of care
• Documentation not completed
• Visits were performed but not entered
• Plan of care frequency was not followed
• Discharge occurred early
• Authorization limited the visits
• Clinical need changed

A LUPA is not automatically an error. The patient may legitimately need fewer visits. The compliance risk arises when services are scheduled or delivered solely to reach a payment threshold rather than because they are medically necessary.

Recommended LUPA Controls

Track each active 30-day period with:

• Applicable LUPA threshold
• Visits ordered
• Visits scheduled
• Visits completed
• Visits documented
• Days remaining
• Missed visit reasons
• Hospitalization status
• Discharge status
• Projected LUPA status

Review potential LUPAs several times during the period. The purpose of LUPA tracking is to prevent avoidable operational failures, not to encourage medically unnecessary visits.

Transfers, Discharges, and Partial Period Payments

A partial period payment adjustment may apply when:

• The patient transfers to another home health agency during the 30-day period
• The patient is discharged and readmitted to the same agency within the same 30-day period

Medicare prorates payment based on the shortened period under the original agency's plan of care. Patient discharge status code 06 is used in applicable transfer and discharge-readmission situations.

Billing Risks

• Agency was not aware the patient started care with another HHA
• Transfer status was not reported
• Discharge date was incorrect
• Patient was readmitted without a new NOA
• Claim periods overlap
• Hospitalization was treated as a discharge when care was only temporarily interrupted
• Discharge status code was inconsistent with the record

Eligibility and common working file checks should be performed throughout the episode, not only at admission.

Consolidated Billing

Home health consolidated billing generally requires the primary home health agency to bill for covered services included under the home health plan of care. The prospective payment generally includes covered home health services, with limited exclusions and separately payable items. Operationally, the agency should control:

• Services furnished directly
• Services furnished under arrangement
• Therapy furnished by outside providers
• Medical supplies
• DME
• Osteoporosis drugs
• Wound care supplies
• Disposable negative pressure wound therapy devices
• Other services that may be separately payable

Failure to coordinate outside providers can cause claim conflicts, duplicate billing, and unexpected liability. The NOA also helps establish home health consolidated billing edits in Medicare systems.

Medicare Advantage, Medicaid, and Commercial Billing

Original Medicare rules are an important foundation, but they should not be applied automatically to every payer.

Medicare Advantage

A Medicare Advantage plan may require:

• Prior authorization
• Admission notification
• Concurrent review
• Plan-specific assessment submission
• Specific claim frequency
• Different payer IDs
• Plan-specific revenue or HCPCS reporting
• Network credentialing
• Visit limits
• Medical necessity review
• Plan-specific appeal process

Some plans follow PDGM-like payment methods, while others use per-visit rates, case rates, contracts, or other methodologies. Verify whether the plan requires both a Medicare NOA and a separate plan notification. Do not assume one submission satisfies both requirements.

Medicaid

Medicaid home health rules vary by state and program. Requirements may include:

• State plan coverage rules
• Prior authorization
• Electronic visit verification
• State-specific provider enrollment
• Waiver requirements
• Plan-specific service codes
• Units based on hours, visits, or tasks
• Ordering and referring provider enrollment
• Different documentation retention periods
• Managed care organization rules

Commercial Insurance

Commercial contracts may pay per visit, per hour, per diem, a case rate, a percentage of charges, a negotiated fee schedule, or a bundled rate. The billing team should maintain a payer matrix documenting authorization requirements, covered disciplines, unit definitions, revenue codes, HCPCS requirements, timely filing, the claim correction process, appeal deadlines, contract rates, patient responsibility, and coordination of benefits rules.

Common Home Health Denials

1. Patient Did Not Qualify for the Home Health Benefit

Possible causes include homebound status not supported, skilled need not supported, the patient was not under the required care, an incomplete plan of care, or a service that was custodial rather than skilled. Prevent it by completing eligibility review before admission, obtaining supporting referral and face-to-face records, using specific clinical documentation, and auditing high-risk admissions.

2. Face-to-Face Documentation Was Missing or Insufficient

Possible causes include an encounter outside the allowed timeframe, a note that did not relate to the primary reason for home health, a missing encounter date, an encounter performed by an ineligible provider, or the agency having only a certification statement rather than the clinical note. Prevent it by obtaining the actual encounter note, verifying provider type and date, matching the primary diagnosis and skilled need, and placing unresolved records in a deficiency queue.

3. Late or Rejected NOA

Possible causes include a NOA submitted after day 5, a NOA that was submitted but not accepted, an incorrect MBI, the wrong admission date, an overlapping admission, or a provider or transaction error. Prevent it by submitting as soon as prerequisites are met, checking acceptance daily, verifying the MBI before admission, maintaining a rejection dashboard, and preserving evidence for exception requests.

4. Principal Diagnosis Did Not Map to PDGM

Possible causes include an invalid or vague principal diagnosis, a diagnosis that did not represent the primary reason for care, incorrect code sequencing, or a code invalid for the claim dates. Prevent it by using qualified home health coding review, validating PDGM grouping before billing, and confirming diagnoses against the plan of care and OASIS.

5. OASIS and Claim Mismatch

Possible causes include an assessment that was not accepted, the wrong assessment type, a diagnosis mismatch, a functional data mismatch, a transfer or discharge mismatch, or an incorrect start of care date. Prevent it by running an OASIS-to-claim comparison, holding the claim until required assessment data is validated, and using documented clinical queries.

6. Visit or Unit Error

Possible causes include a missing visit, a duplicate visit, the wrong discipline, an incorrect HCPCS, an incorrect revenue code, units that do not match time, or unsigned documentation. Prevent it by reconciling the schedule, notes, payroll, EVV, and claim lines, using discipline-specific edit rules, and requiring completed notes before claim release.

7. Authorization Denial

Possible causes include no authorization, an expired authorization, the wrong discipline or code, exceeded units, a provider not linked to the authorization, or late admission notification. Prevent it by maintaining an authorization tracker, linking authorization details to scheduling, reviewing remaining units before each visit, and submitting reauthorization early.

8. Overlapping Home Health or Inpatient Stay

Possible causes include another HHA having an open admission, the patient being in a hospital or SNF, a Medicare Advantage enrollment change, or overlapping claim periods. Prevent it by checking eligibility at admission and during the period, reconciling hospitalization notices, and verifying transfer and discharge status.

9. Untimely Filing

Possible causes include a claim held for signatures, a rejection that was not worked, an unresolved authorization, a miscalculated payer deadline, or staff assuming the clearinghouse submission was accepted. Prevent it by tracking payer deadlines, monitoring rejected claims daily, escalating documentation deficiencies, and using a no-response aging report.

10. Medical Review or Additional Documentation Request

Possible causes include services selected for review, documentation that does not support eligibility, visit frequency that appears inconsistent, incomplete wound or therapy records, or a plan of care and visits that do not align. Prevent it by maintaining a complete episode record, using an ADR checklist, indexing documents by requirement, submitting only relevant and organized records, and tracking response deadlines.

The goal of denial management is not only to overturn denials. It is to identify the root cause and stop the same problem from reaching future claims. Structured denial management support and AR follow-up support can categorize denials by payer and reason and work them to resolution.

Home Health AR Follow-Up

Home health AR requires more than checking whether a claim is paid. A strong follow-up process identifies the claim's current stage and next required action.

Workqueues

Separate AR into:

• Clearinghouse rejections
• Medicare return-to-provider claims
• Payer front-end rejections
• NOA rejections
• Claims awaiting medical review
• Additional documentation requests
• Claims pending beyond expected processing time
• Denials requiring correction
• Denials requiring appeal
• Underpayments
• Credit balances
• Secondary claims
• Patient balances
• Unapplied cash

Follow-Up Questions

For each unpaid claim, determine:

1. Was the claim accepted?
2. Is the NOA accepted?
3. Is the claim suspended, returned, rejected, denied, or pending?
4. Is additional documentation required?
5. Is an authorization missing?
6. Is there an overlapping stay or payer?
7. Was the HIPPS code changed?
8. Was a LUPA or partial payment applied?
9. Is the payment consistent with the expected contract?
10. What is the deadline for the next action?

Medicare Return-to-Provider Claims

RTP claims are not final denials. They are claims returned for correction before processing can continue. Track the RTP reason, the date returned, the assigned owner, the correction needed, the resubmission date, and aging since return. RTP claims should be worked daily. Leaving them uncorrected delays cash and can create timely filing risk.

Recommended Billing Reports and KPIs

Front-End Metrics

Clinical and Documentation Metrics

Billing Metrics

AR Metrics

Metrics should be separated by payer, branch, clinician, discipline, denial reason, and period type when possible. Teams weighing an in-house build versus support can use the Billing In-House Readiness Grader or estimate potential staffing costs with the savings calculator.

2026 Medicare Home Health Updates

The following Medicare updates are particularly relevant for calendar year 2026.

Payment Update

CMS finalized a 2.4% home health payment update percentage for compliant agencies. However, other permanent, temporary, and outlier-related adjustments result in an estimated 1.3% aggregate decrease in Medicare payments to home health agencies compared with 2025. The aggregate estimate does not predict the result for an individual agency. Actual payment depends on case mix, geography, quality and value-based purchasing adjustments, patient mix, LUPA experience, and operational performance.

PDGM Recalibration

CMS recalibrated case-mix weights, functional impairment levels, comorbidity adjustment subgroups, and LUPA thresholds. The recalibration used more recent claims and assessment data. Agencies should update their billing software, grouper logic, rate tables, and financial forecasts for 2026.

Face-to-Face Policy

CMS broadened the face-to-face regulation to align with the CARES Act. Physicians, nurse practitioners, clinical nurse specialists, and physician assistants may perform the encounter under the updated policy without the former regulatory limitation tied to being the certifying practitioner or the acute or post-acute practitioner.

Quality Reporting

Agencies that fail to submit required quality data are subject to a 2-percentage-point reduction to the market basket update. Billing and finance teams should coordinate with quality reporting staff because reporting noncompliance affects reimbursement.

Example Home Health Billing Scenario

Patient

Maria is discharged from an acute care hospital after treatment for a lower extremity wound and uncontrolled diabetes. The hospital refers her to a Medicare-certified home health agency for skilled nursing and physical therapy.

Intake Review

The agency obtains the hospital discharge summary, the face-to-face encounter note, the home health order, the medication list, wound treatment instructions, Medicare information, and physician information. The record shows that Maria uses a walker, needs another person's assistance to leave home, becomes short of breath with minimal exertion, and requires considerable effort to attend appointments.

Start of Care

A registered nurse completes the initial visit on July 3 and documents the wound condition, diabetes management needs, medication teaching, homebound status, skilled nursing need, and the plan for therapy evaluation. The OASIS start-of-care assessment is completed and transmitted.

NOA

The billing team submits the NOA on July 4 using TOB 032A. Medicare accepts it the same day. The agency has met the 5-calendar-day requirement.

PDGM Classification

The principal diagnosis supports the wounds clinical group. The period is categorized based on an institutional admission source, early timing, the wounds clinical group, the functional impairment level from OASIS, and supported secondary diagnoses for comorbidity adjustment.

Visit Reconciliation

During the first 30-day period, the agency provides skilled nursing visits, physical therapy evaluation and treatment, follow-up education, and wound monitoring. The billing team reconciles each visit to the signed documentation and plan of care. It also reviews the LUPA threshold before period close.

Claim

After the period ends, the agency submits TOB 0329 with:

• One revenue code 0023 line
• A valid HIPPS code
• Skilled nursing lines under 055x
• Physical therapy lines under 042x
• Correct HCPCS codes
• Correct 15-minute units
• Q5001 for services in the patient's home
• Accurate statement dates
• Correct discharge status
• Supported diagnoses

Payment Review

When the remittance is received, the payment posting specialist verifies the paid HIPPS code, the case-mix payment, the wage adjustment, any value-based adjustment, no late NOA reduction, no unexpected LUPA, and no partial period payment. The account is then closed or moved to the next action based on the result.

How RCM Staff Can Help

Home health billing depends on disciplined coordination across intake, eligibility, clinical documentation, OASIS, coding, orders, scheduling, claims, payment posting, denials, and AR. RCM Staff provides trained Philippines-based revenue cycle support for U.S. healthcare organizations. Support can be structured around the agency's existing EHR, clearinghouse, payer portals, Medicare contractor systems, policies, and escalation rules. Home health billing support may include:

• Referral intake support
• Eligibility and benefits verification
• Medicare Advantage plan identification
• Authorization and notification tracking
• Face-to-face documentation tracking
• Order and plan of care tracking
• NOA submission support
• NOA acceptance and rejection tracking
• OASIS status reconciliation
• Diagnosis and claim review support
• Visit reconciliation
• LUPA monitoring
• Claim preparation and submission support
• RTP and rejection correction
• Payment posting
• Denial tracking
• Additional documentation request tracking
• AR follow-up
• Underpayment review
• Billing dashboard maintenance
• SOP and workqueue documentation

RCM Staff does not replace the agency's clinical judgment, qualified coding professionals, compliance program, or legal counsel. Our team works as an extension of the agency's revenue cycle operation under documented access, training, quality review, and HIPAA controls. A medical virtual assistant can own the NOA and visits-remaining log so nothing is billed beyond what the record and payer support. Learn more about our offshore medical billing model or medical billing support from the Philippines.

Frequently Asked Questions

Sources and References

1. CMS Home Health Prospective Payment System
2. CMS Home Health Patient-Driven Groupings Model
3. CMS Medicare Claims Processing Manual, Chapter 10: Home Health Agency Billing
4. CMS Medicare Benefit Policy Manual, Chapter 7: Home Health Services
5. CMS Home Health Services Provider Compliance Tips
6. CMS CY 2026 Home Health Prospective Payment System Final Rule Fact Sheet
7. CMS MM14304: Home Health Prospective Payment System CY 2026 Rate Update
8. CMS Home Health Quality Reporting Requirements

Disclaimer: This guide is for general educational and operational purposes only. It does not provide legal, clinical, coding, compliance, or reimbursement advice. Coverage, coding, payment, authorization, documentation, and claim requirements change and may vary by payer, plan, state, contract, patient, and date of service. Verify current CMS guidance, Medicare Administrative Contractor instructions, payer policies, official ICD-10-CM guidance, and applicable laws before billing. RCM Staff is an independent service provider and is not affiliated with, endorsed by, or certified by CMS, Medicare, Medicaid, any Medicare Administrative Contractor, payer, EHR, or software vendor mentioned.