Medicare and Medicaid are two critical payers in the long-term care industry, but their billing systems can be complicated and easy to mismanage. For providers, a clear understanding of each program’s requirements isn’t just useful — it’s essential for maintaining financial stability and staying compliant with regulations.
This article breaks down the key differences, billing requirements, and best practices to keep your facility audit-ready and efficient.
For a full overview, check out our comprehensive billing guide.
Medicare vs. Medicaid: What’s the Difference?
Though they sound similar, Medicare and Medicaid are very different in terms of eligibility, coverage, and billing requirements:
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Medicare is a federal program primarily for people aged 65 and older, or those with certain disabilities. It generally covers short-term care like rehabilitation or skilled nursing after a hospital stay.
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Medicaid is a state-run program for low-income individuals, including elderly residents who need long-term care. Coverage varies by state and often includes room and board, personal care, and basic medical services.
Understanding who qualifies for what — and when — is crucial. For example, Medicare may cover the first 20 days in a skilled nursing facility entirely, but after that, co-pays apply. Medicaid, meanwhile, can cover extended care but requires financial eligibility and annual recertification.
Many residents use both programs at different stages, which adds complexity to billing. Knowing which services are billable to which program — and when — can help prevent claim rejections and delays.
Billing Requirements for Medicare
Billing Medicare requires strict adherence to documentation and coding rules. Providers must first determine whether a service falls under Part A (inpatient care) or Part B (outpatient care and services like therapy or diagnostics).
Part A covers:
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Skilled nursing facility (SNF) stays
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Hospice care
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Limited home health care
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Some medications during inpatient stays
Part B covers:
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Therapy (PT, OT, speech)
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Durable medical equipment (DME)
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Certain outpatient services
Key billing requirements include:
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Verifying beneficiary eligibility before services
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Using accurate ICD-10 and CPT codes
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Keeping thorough documentation for every billed service
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Submitting claims through the Medicare Administrative Contractor (MAC)
Compliance is essential. Missing documentation or incorrect coding can lead to denied claims or repayments. Medicare audits are increasingly common, especially for post-acute care, so a clean and consistent billing process is critical.
Medicaid Reimbursement Processes
Medicaid billing introduces additional complexity because it’s administered at the state level — meaning different rules, systems, and timelines.
Most states require providers to:
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Submit claims through a state Medicaid portal or managed care plan
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Use state-approved forms and codes
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Provide proof of resident eligibility
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Track authorizations, recertifications, and care plans
Medicaid reimbursement rates are often lower than Medicare or private insurance, so operational efficiency is vital. Delayed or denied payments can create serious cash flow issues.
To maintain billing accuracy:
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Train billing staff on state-specific rules
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Maintain a calendar for deadlines and renewals
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Track all prior authorizations
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Coordinate closely with care teams for updated service plans
Regular internal audits and training help ensure Medicaid billing stays compliant even as state rules change.
Documentation and Recordkeeping Best Practices
Strong documentation is the backbone of billing compliance and your best defense during audits — whether you’re billing Medicare, Medicaid, or both.
Best practices include:
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Daily charting by nurses and therapists to reflect services rendered
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Standardized forms for assessments, care plans, and billing
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Secure digital storage with version control and access logs
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Audit trails for all claim edits or submissions
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Regular claim reviews against clinical notes
Quick Audit-Proofing Checklist:
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Are all billed services documented in clinical notes?
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Do dates and times align across all records?
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Is the resident’s eligibility current and authorized?
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Are all required signatures and timestamps present?
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Have rejections or returned claims been resubmitted?
Any misalignment between billing and documentation could raise red flags during audits — and delay reimbursement.
Conclusion
Billing for Medicare and Medicaid in nursing homes is more than a back-office function — it’s essential for regulatory compliance and financial health. Providers who understand program differences, follow best documentation practices, and keep up with changing policies can prevent denials, speed up reimbursement, and avoid audits.
Feeling overwhelmed by changing rules? A trusted partner like Pharmbills can help. Their experienced billing teams work closely with long-term care facilities to streamline processes, ensure compliance, and protect your revenue.
