Skilled Nursing Facility ADR Response Guide: Therapy, Nursing, and Physician Certification Documentation

An additional documentation request (ADR) is a request from a Medicare contractor for medical records to support a claim. For skilled nursing facilities (SNFs), ADRs can come from Medicare Administrative Contractors (MACs) during prepayment or postpayment review, from Recovery Audit Contractors, from the Supplemental Medical Review Contractor, from Unified Program Integrity Contractors (UPICs), and through Targeted Probe and Educate (TPE) reviews. The quality of the response often decides whether the claim is paid or denied.

SNF claims are complex. A single Part A claim can cover a month of care and depend on a qualifying hospital stay, physician certification, daily skilled services, therapy and nursing documentation, and an MDS assessment that supports the billed HIPPS code. Reviewers check all of these. Missing a single required element, such as a timely physician certification, can cause a denial even when the care was appropriate.

This article walks through how to respond to SNF ADRs, what documentation to include, and how to organize a packet that makes the reviewer's job easy. It is educational and does not replace legal or professional advice.

Understanding the Request

Who Is Asking

Identify the contractor and review type. MAC ADRs generally allow 45 days to respond, according to the Medicare Program Integrity Manual. UPIC requests generally allow 30 days. Recovery Audit Contractor requests follow their own time frames and limits. Prepayment ADRs hold the claim until review is complete, while postpayment ADRs can lead to overpayment demands.

What They Want

Read the ADR letter carefully. It lists the claim, the beneficiary, the dates of service, and often the specific documents requested. Some ADRs include a reason code or review focus, such as medical necessity of skilled services, therapy documentation, or HIPPS code validation. Respond to everything requested, plus anything else needed to support the claim.

The Deadline

Calendar the deadline the day the ADR arrives. Late responses result in denial for lack of documentation. Plan to submit at least several days before the deadline to allow for transmission problems.

The Core Coverage Requirements

Every SNF ADR response should demonstrate that the claim meets the coverage requirements in 42 CFR 409.30 through 409.36 and Chapter 8 of the Medicare Benefit Policy Manual:

• The beneficiary had a qualifying inpatient hospital stay of at least three consecutive days, not counting the discharge day, unless a waiver applied.

• The beneficiary was admitted to the SNF within 30 days of hospital discharge, with limited exceptions.

• The beneficiary needed daily skilled nursing or skilled rehabilitation services, which as a practical matter could only be provided on an inpatient basis in a SNF.

• The services were for a condition treated during the qualifying hospital stay or that arose while the beneficiary was in the SNF for treatment of such a condition.

• A physician or allowed practitioner certified and recertified the need for SNF care as required.

Physician Certification and Recertification

The Requirements

Under 42 CFR 424.20, the initial certification must be obtained at the time of admission or as soon thereafter as is reasonable and practicable. The first recertification is required no later than the 14th day of the stay, and subsequent recertifications at intervals not exceeding 30 days. Certifications and recertifications may be signed by a physician or, under specified conditions, by a nurse practitioner, clinical nurse specialist, or physician assistant who does not have a direct or indirect employment relationship with the facility but works in collaboration with a physician.

Content

The certification must state that the beneficiary needs daily skilled nursing or skilled rehabilitation services that, as a practical matter, can only be provided in a SNF on an inpatient basis, and that the services are for a condition treated during the qualifying hospital stay or arising during SNF care for such a condition. Recertifications must also address the continued need for skilled services and, where relevant, the estimated period of time the beneficiary will need to remain in the SNF and plans for home care.

Format

CMS does not require a specific form. The certification can be a separate signed statement or can be included in a physician progress note or order, as long as it contains the required content and signature. Many facilities use a dedicated certification form to ensure completeness.

Delayed Certifications

Under 42 CFR 424.11 and Medicare manual guidance, delayed certifications and recertifications may be accepted when there is a legitimate reason for the delay, such as an oversight, and the delayed statement includes an explanation. Facilities should not rely on this as a routine practice.

Common Certification Errors

• Missing initial certification.

• Recertification signed after day 14 or after the 30-day interval.

• Unsigned or undated certifications.

• Certifications signed by a practitioner who is not permitted to sign.

• Certifications missing required content.

• Certification included in a note that is illegible.

What to Include in the ADR

• The signed and dated initial certification.

• Every recertification during the dates of service.

• Any delayed certification with its explanation.

• A signature log or attestation if signatures are illegible, as permitted under Program Integrity Manual signature guidance.

Qualifying Stay Documentation

Include documentation that establishes the qualifying hospital stay:

• Hospital discharge summary showing admission and discharge dates and inpatient status.

• History and physical and other key hospital records.

• If the stay was less than three days, documentation of any applicable waiver, such as an approved alternative payment model waiver.

Reviewers may confirm inpatient status through claims data, but including the discharge summary helps connect the hospital stay to the SNF stay and shows the condition treated.

Skilled Nursing Documentation

What Makes Nursing Skilled

Chapter 8 of the Medicare Benefit Policy Manual explains that skilled nursing services require the skills of a registered nurse or licensed practical nurse to be performed safely and effectively. Skilled services can include direct skilled nursing services, such as intravenous medications, tube feedings, wound care for certain wounds, and tracheostomy care. They can also include management and evaluation of a care plan, observation and assessment of a patient's changing condition, and teaching and training activities, when the patient's condition requires skilled oversight.

Documentation Reviewers Look For

• Daily skilled nursing notes that describe what was done and why it required skilled personnel.

• Assessments of the patient's condition, including vital signs, wound measurements, respiratory status, and other relevant findings.

• The patient's response to treatment and any changes in condition.

• Physician notification and new orders.

• Teaching and training provided and the patient's or caregiver's progress.

• Care plan updates.

Common Nursing Documentation Problems

• Notes that describe custodial care, such as assistance with activities of daily living, without skilled elements.

• Generic or copied notes that do not reflect the patient's condition.

• Missing notes for days billed.

• Observation and assessment claimed without documentation of instability or risk.

• Management and evaluation claimed without documentation of the complexity of the care plan.

Strengthening Nursing Notes

Notes should explain the skilled need in the patient's specific terms. Instead of "monitored vitals," a strong note describes why monitoring required a nurse, what was found, and what was done in response. Daily notes for every billed day are essential.

Therapy Documentation

Daily Skilled Rehabilitation

When skilled rehabilitation is the basis for coverage, skilled therapy must be needed and provided at least five days a week. Therapy must be reasonable and necessary, and the services must require the skills of a qualified therapist.

Required Therapy Documents

• Evaluation: objective findings, prior level of function, current functional limitations, and goals.

• Plan of care: diagnoses, long-term goals, type, amount, frequency, and duration of therapy, signed by the therapist.

• Treatment notes: each session's date, skilled interventions, minutes, and the patient's response.

• Progress reports: progress toward goals, changes to the plan, and justification for continued therapy.

• Discharge summary.

• Therapy minutes by mode, consistent with MDS reporting and the concurrent and group therapy limits.

Maintenance Therapy

Following the Jimmo v. Sebelius settlement, coverage does not depend on the patient's potential for improvement. Skilled maintenance therapy may be covered when the patient's condition requires a therapist's skills to design or carry out a maintenance program safely and effectively. Documentation must explain why skilled services were needed.

Common Therapy Documentation Problems

• Notes that list exercises without describing skilled interventions or clinical decision making.

• No measurable goals or progress reports.

• Missing evaluations or plans of care.

• Therapy fewer than five days a week when therapy is the sole basis for skilled need.

• Inconsistencies between therapy logs and MDS minutes.

MDS and HIPPS Code Support

Under the Patient Driven Payment Model, reviewers may validate the HIPPS code billed by comparing MDS items with the medical record. Include:

• The MDS assessment that set payment, typically the 5-day assessment, and any Interim Payment Assessment.

• Documentation supporting the primary diagnosis and any surgical procedure coded.

• Documentation supporting Section GG items during the assessment period.

• Documentation supporting SLP indicators, nursing component items, and non-therapy ancillary comorbidities.

If documentation does not support the coded items, reviewers may adjust the HIPPS code and pay a lower amount rather than deny the entire claim.

Other Documents to Include

• Physician orders for SNF admission, therapy, and treatments.

• Physician and practitioner progress notes.

• Medication administration records for the dates of service.

• Interdisciplinary care plans.

• Lab and diagnostic results relevant to skilled needs.

• Notice of Medicare Non-Coverage or other beneficiary notices when the claim includes the end of coverage.

Organizing the ADR Packet

Cover Letter

A cover letter should identify the claim, summarize why the claim meets coverage requirements, and point the reviewer to key documents with page numbers. It should be factual and concise.

Order of Documents

A logical order helps reviewers. One common approach:

• Cover letter and index.

• Qualifying hospital stay records.

• Physician certification and recertifications.

• Physician orders and progress notes.

• MDS assessments.

• Nursing documentation in date order.

• Therapy evaluations, plans of care, treatment notes, and progress reports.

• Medication administration records.

• Care plans and other supporting documents.

Formatting

• Paginate the entire packet.

• Ensure every page is legible.

• Include signature logs or attestations for illegible signatures.

• Highlight or tab key documents when permitted.

• Include the ADR letter or barcode page as instructed.

Submission

Submit through the method the contractor allows, such as electronic submission through the Electronic Submission of Medical Documentation system, the contractor's portal, or mail. Keep proof of submission and a complete copy of the packet.

Before You Submit: A Quality Check

• Is every requested document included?

• Are all dates of service covered by nursing and therapy documentation?

• Are the initial certification and all recertifications present, signed, dated, and timely?

• Does the qualifying stay documentation show three inpatient days?

• Do MDS items match the documentation?

• Are signatures legible or supported by a signature log?

• Is the packet paginated and organized with a cover letter?

• Is the packet being submitted before the deadline?

Common Denial Reasons

• Missing or untimely physician certification or recertification.

• Documentation does not support daily skilled services.

• Therapy documentation does not support skilled need or medical necessity.

• Documentation not received by the deadline.

• HIPPS code not supported by MDS documentation.

• Qualifying stay not met.

• Missing signatures.

If the Claim Is Denied

Review the Decision

Read the denial reason carefully and determine whether it is based on missing documentation, technical requirements, or clinical judgment.

Appeal

Medicare appeals follow 42 CFR Part 405, Subpart I:

• Redetermination by the MAC, requested within 120 days of the initial determination.

• Reconsideration by a Qualified Independent Contractor, requested within 180 days of the redetermination.

• Administrative Law Judge hearing, if the amount in controversy is met.

• Medicare Appeals Council review.

• Federal district court review.

For postpayment overpayments, filing a redetermination within 30 days and a reconsideration within 60 days stops recoupment during those levels under 42 CFR 405.379. Evidence should be submitted by the reconsideration level, because new evidence is generally limited after that point without good cause.

Learn From Denials

Track denial reasons and use them to improve documentation, training, and processes.

Building an ADR Response Process

• Designate an ADR coordinator.

• Log every ADR with the deadline, contractor, and status.

• Use a standard checklist and packet template.

• Have a clinical reviewer check each packet before submission.

• Track outcomes and denial reasons.

• Educate staff based on findings.

• Audit claims proactively using the same checklist.

A Hypothetical Example

A SNF receives five ADRs from its MAC under Targeted Probe and Educate, and three are denied. Two denials cite missing day 14 recertifications, and one cites therapy notes that did not describe skilled interventions. The SNF implements an electronic tracking system that alerts staff before recertification deadlines, trains therapists on documenting skilled interventions and clinical reasoning, adds a cover letter and index to every ADR packet, and appeals the therapy denial with additional documentation. In the next TPE round, all claims are approved.

Writing an Effective Cover Letter

A cover letter is the reviewer's roadmap. It should not argue the case at length, but it should make the key facts easy to find. A strong cover letter typically includes:

• The beneficiary's name, Medicare number, claim number, and dates of service.

• A one-paragraph summary of the hospital stay and the reason for SNF admission.

• A brief statement of the skilled services provided, such as daily skilled therapy five or more days a week, intravenous antibiotics, or wound care.

• The dates of the initial certification and each recertification, with page numbers.

• Page references for the MDS assessment and key documentation supporting the primary diagnosis and Section GG items.

• A contact person for questions.

Avoid including information that is not supported by the record. Reviewers base their decisions on the medical record, not on the letter.

Handling Special Situations

Partial Stays and End of Coverage

When a claim includes the end of skilled coverage, include documentation explaining when and why skilled services ended and copies of beneficiary notices, such as the Notice of Medicare Non-Coverage. Inconsistent documentation about when skilled need ended can lead reviewers to deny days.

Interrupted Stays

Under PDPM's interrupted stay policy, a patient who leaves the SNF and returns within the interruption window may continue the same stay. Include documentation of the discharge and readmission dates and the assessments that apply.

Hospital Readmissions

If the patient was readmitted to the hospital during the SNF stay, include documentation of the transfer, the return, and any new certifications required.

Late or Missing Records

If a document cannot be located, do not create or alter records. Submit what exists, and if appropriate, explain the circumstances. Altering records after an ADR can create serious legal risk.

Common Myths About SNF ADRs

Myth: More Paper Is Always Better

Volume does not replace organization. Reviewers must find key documents quickly. Unindexed packets with thousands of pages can lead reviewers to miss critical records.

Myth: Good Care Is Enough

Medicare pays based on documentation. Appropriate care that is not documented, or a missing certification, can still lead to denial.

Myth: Therapy Minutes Prove Skilled Need

Minutes show that therapy occurred, not that it required a therapist's skills. Notes must describe skilled interventions and clinical reasoning.

Myth: We Can Fix It on Appeal

Appeals can succeed, but they take time, and evidence is generally limited after reconsideration. The best appeal strategy is a complete initial response.

Questions Leadership Should Ask

• Who coordinates ADR responses, and how are deadlines tracked?

• What percentage of our ADRs result in denials, and why?

• Do we track certification and recertification timeliness?

• Do therapy notes describe skilled interventions and clinical reasoning?

• Do nursing notes explain skilled need for every billed day?

• Do we audit MDS coding against documentation?

• Do we use a standard packet checklist and cover letter?

Key Takeaways

• Calendar ADR deadlines immediately, generally 45 days for MACs and 30 days for UPICs.

• Prove every coverage requirement, including qualifying stay, certification, and daily skilled need.

• Certifications are due at admission, recertification by day 14, then every 30 days.

• Nursing and therapy notes must describe skilled services for every billed day.

• Organize the packet with a cover letter, index, and pagination.

• Appeal timely, and submit evidence by reconsideration.

Frequently Asked Questions

How long do SNFs have to respond to a MAC ADR?

Generally 45 days, while UPIC requests generally allow 30 days. Always check the letter.

When is the first recertification due?

No later than day 14 of the stay, with subsequent recertifications at intervals of no more than 30 days.

Can nurse practitioners sign SNF certifications?

Yes, under specified conditions, nurse practitioners, clinical nurse specialists, and physician assistants who are not employed by the facility and work in collaboration with a physician may sign.

What documents are most important in a SNF ADR?

Physician certifications, qualifying stay records, daily skilled nursing and therapy documentation, and the MDS with supporting documentation.

Can we submit additional documents on appeal?

Yes, but evidence should be submitted by the reconsideration level, because new evidence is generally limited after that.

Conclusion

A strong SNF ADR response proves every coverage requirement: a qualifying stay, timely certification and recertification, daily skilled nursing or therapy, and accurate MDS coding. SNFs that respond on time, include complete documentation, organize packets clearly, check quality before submission, and appeal when appropriate will protect their revenue and reduce future review.

How HealthBridge Can Help

HealthBridge is a healthcare management consulting firm that helps SNFs build ADR response processes, review and organize documentation packets, audit certification, nursing, therapy, and MDS documentation, train staff, and support appeals. If your facility is facing ADRs, please get in touch with us. We will be happy to help you with this topic.

References

• Electronic Code of Federal Regulations. 42 CFR Part 409, Subpart D, Requirements for Coverage of Posthospital SNF Care. https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-B/part-409/subpart-D

• Electronic Code of Federal Regulations. 42 CFR 424.20, Requirements for Posthospital SNF Care. https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-B/part-424/subpart-B/section-424.20

• Electronic Code of Federal Regulations. 42 CFR 424.11, General Procedures. https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-B/part-424/subpart-B/section-424.11

• Electronic Code of Federal Regulations. 42 CFR Part 405, Subpart I, Determinations, Redeterminations, Reconsiderations, and Appeals Under Original Medicare. https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-B/part-405/subpart-I

• Electronic Code of Federal Regulations. 42 CFR 405.379, Limitation on Recoupment of Provider and Supplier Overpayments. https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-B/part-405/subpart-C/section-405.379

• Centers for Medicare & Medicaid Services. Medicare Benefit Policy Manual, Chapter 8, Coverage of Extended Care (SNF) Services Under Hospital Insurance. https://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/downloads/bp102c08.pdf

• Centers for Medicare & Medicaid Services. Medicare Program Integrity Manual, Chapter 3, Verifying Potential Errors and Taking Corrective Actions. https://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/downloads/pim83c03.pdf

• Centers for Medicare & Medicaid Services. Medicare Claims Processing Manual, Chapter 6, SNF Inpatient Part A Billing and SNF Consolidated Billing. https://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/downloads/clm104c06.pdf

• Centers for Medicare & Medicaid Services. Minimum Data Set 3.0 Resident Assessment Instrument Manual. https://www.cms.gov/medicare/quality/nursing-home-improvement/resident-assessment-instrument-manual

• Centers for Medicare & Medicaid Services. Jimmo Settlement. https://www.cms.gov/medicare/coverage/jimmo-settlement

• Centers for Medicare & Medicaid Services. Targeted Probe and Educate. https://www.cms.gov/research-statistics-data-and-systems/monitoring-programs/medicare-ffs-compliance-programs/medical-review/targeted-probe-and-educatetpe