Medicare PT Documentation Requirements That Survive Review

Insufficient documentation is the leading reason therapy claims fail review, ahead of coding errors and ahead of actual medical-necessity disputes (we covered the statistics in our denials guide). What makes that fixable is that Medicare’s documentation requirements are not vague. They’re enumerated, document by document and element by element, in the Medicare Benefit Policy Manual, Chapter 15, §220.3 (Pub. 100-02). This guide walks the complete framework, current as of August 2026.

One orienting principle from the manual before the specifics: contractors “shall consider the entire record when reviewing claims for medical necessity so that the absence of an individual item of documentation does not negate the medical necessity of a service when the documentation as a whole indicates the service is necessary” (§220.3.A). The record is judged as a whole. That cuts both ways: one weak note won’t sink a strong record, and perfect formatting won’t save a record that never demonstrates skilled care.

The five documents Medicare expects

When a contractor requests records, §220.3.B lists what you’re expected to produce for the episode:

1. Evaluation and plan of care (one document or two)
2. Certification and recertifications (physician/NPP approval of the plan)
3. Progress reports, including the discharge note
4. Treatment notes for every treatment day
5. Optionally, a separate justification statement for services more extensive than typical for the condition

The manual adds a constraint on reviewers that’s worth knowing: contractors “shall not require more specific documentation unless other Medicare manual policies require it.” The list above is both the floor and, formally, the ceiling. Everything below is what each document must contain.

The clock table

Every timing requirement in the framework, in one place:

Note what the clocks run on. Certification runs on calendar days; progress reports run on treatment days. Patient absences don’t advance the progress-report clock but don’t pause the certification clock. A twice-weekly patient hits a progress report roughly every five weeks but needs recertification on the same 90-day calendar schedule as a daily patient.

The evaluation: where necessity is established

The evaluation carries the heaviest documentation load because it justifies everything that follows (§220.3.C). Required content:

• A diagnosis and description of the specific problem. Both the medical diagnosis and an impairment-based treatment diagnosis where scope of practice allows. The manual’s example: medical diagnosis CVA; PT treatment diagnosis “abnormality of gait.” Include the body part evaluated.
• Conditions and complexities that affect treatment, with their impact on prognosis stated where it isn’t obvious. This is where extended episodes are won or lost later: cardiac dysrhythmia isn’t a PT diagnosis, but the manual itself uses it as an example of a complexity that can justify extended treatment when documentation shows how it affects progress.
• Objective baseline. One of four named outcome instruments (NOMS, FOTO, AM-PAC, OPTIMAL) is recommended but not required; without one, the record must instead capture objective, measurable function, and should capture severity/complexity context: concurrent services, medication count, prior episodes of care, self-rated health, and social support and living situation (§220.3.C lists these in detail, several marked as required when no instrument is used).
• Prognosis and plan: expected return to premorbid or maximum expected condition, with a time frame, or a determination that treatment isn’t needed.

Two operational notes from the same section. Evaluation minutes are untimed: they count in total treatment time but never toward timed-code units. And re-evaluations are not routine: they’re covered only when documentation supports the need for new tests and measurements, such as new clinical findings, significant change in condition, or failure to respond to intervention. “Continuous assessment of the patient’s progress is a component of ongoing therapy services and is not payable as a re-evaluation.”

The certification: proof of physician involvement

Certification is a dated physician/NPP signature on the plan or any document approving it; a progress note or order works (§220.1.3.A). The critical facts, covered in more depth in our denials guide: 30 days to get it, 90-day maximum duration, delayed certification is allowed with a documented reason, and a missing certification is a technical denial that, in office settings, lands on the beneficiary. Chiropractors cannot certify therapy plans.

The subtlety worth adding here: an order for continued treatment counts as recertification. If the physician sends an order for “2 more weeks of continued treatment,” the manual instructs contractors to accept it as certification of those two weeks under the existing plan. Your recertification workflow can often be satisfied by paperwork the physician already generates.

The progress report: where continued necessity lives

The progress report “provides justification for the medical necessity of treatment” (§220.3.D). It must be written by the clinician (the therapist or physician/NPP, not an assistant), at least every 10 treatment days, and must include:

• Assessment of improvement and extent of progress (or lack of it) toward each goal
• Plans for continuing treatment, with any treatment plan revisions
• Changes to long- or short-term goals, discharge, or an updated plan sent for recertification

Assistants may write elements of progress reports (objective measurements, objective reports of patient statements), but “reports written by assistants are not complete progress reports,” and assistants “may not make clinical judgments about why progress was or was not made.” The manual’s example of the distinction: “increasing strength” is not objective; “patient ambulates 15 feet with maximum assistance” is.

Embedded in the progress-report rules is the requirement that reviews actually fail clinics on: the clinician must actively participate in treatment at least once during each progress report period. Supervising from the doorway doesn’t satisfy it. For practices with high assistant utilization, this is the requirement to build the schedule around: the therapist personally treats every Medicare patient at least once per reporting period, and the note shows it.

Two more rules that save rework. Progress report elements written into treatment notes count; if every required element appears in the notes during the period, no separate report document is needed. And the discharge note is a progress report covering the final period; the manual calls it “the last opportunity to justify the medical necessity of the entire treatment episode in case the record is reviewed.” Write it that way.

The necessity language reviewers are looking for

For rehabilitative therapy, the record needs objective evidence or a clinically supportable expectation that “the patient’s condition has the potential to improve or is improving in response to therapy, maximum improvement is yet to be attained, and there is an expectation that the anticipated improvement is attainable in a reasonable and generally predictable period of time” (§220.3.D).

For maintenance therapy, post-Jimmo: the therapist’s skills are “necessary to maintain, prevent or slow further deterioration” and the services “cannot be safely carried out by the beneficiary him or herself, a family member, another caregiver or unskilled personnel.” Improvement is not the test; skilled need is. Documenting a plateau without addressing which of these two justifications applies is how covered care gets denied.

The treatment note: a record, not an essay

The daily note’s purpose is narrow: “to create a record of all treatments and skilled interventions that are provided and to record the time of the services in order to justify the use of billing codes on the claim” (§220.3.E). Required elements, exactly four:

1. Date of treatment
2. Each specific intervention/modality provided and billed, for both timed and untimed codes, in language matchable to the claim. Record timed services even when unbilled, because unbilled timed minutes affect unit allocation.
3. Total timed-code minutes and total treatment time. Total treatment time includes untimed services but excludes non-billable time like rest periods. Per-intervention minutes are voluntary; the manual explicitly says contractors “shall not require it.”
4. Signature and professional identification of the qualified professional who furnished or supervised the service, with contributors listed.

Equally important is what the note is not required to do: “The treatment note is not required to document the medical necessity or appropriateness of the ongoing therapy services.” Necessity lives in the evaluation and progress reports. Clinicians who write defensive paragraphs in every daily note are spending effort where reviewers aren’t looking, usually at the expense of the progress reports where they are. What is worth a sentence in the daily note: treatment changes (“added electrical stim to address shoulder pain,” in the manual’s own example), because changes demonstrate skilled judgment.

One modifier-driven addition: since PTA/OTA services carry the CQ/CO modifier and an 85 percent payment rate, the note’s furnishing-provider identification is also your evidence for modifier decisions. Who provided which minutes should be recoverable from every note.

Dead requirements still haunting templates

Functional limitation reporting, the G-codes and severity modifiers that occupied therapy documentation from 2013 through 2018, was discontinued for dates of service on and after January 1, 2019 (§220.4, per the CY 2019 fee schedule final rule). If your templates still demand G-codes, or your staff still believes Medicare requires them, that’s pure documentation burden with zero compliance value. Time spent there is better spent on progress-report quality.

A review-readiness checklist

For any Medicare episode, you should be able to produce, within a day:

• Evaluation with diagnosis, complexities, objective baseline, prognosis, and plan
• Certification dated within 30 days of first treatment; recertifications covering every treatment interval to date
• A progress report for every 10-treatment-day period, written by the clinician, addressing each goal
• Evidence of clinician active participation in treatment within each reporting period
• A treatment note for every billed date with interventions, total timed minutes, total treatment time, and signature
• Unit counts on claims that reconcile with documented minutes
• For any episode past the plateau: explicit rehabilitative-potential or maintenance-necessity language

If assembling that package for a random patient would take your practice a week of reconstruction, the documentation problem exists now; the records request just hasn’t arrived yet.

The reason documentation fails review is rarely that clinicians don’t know these rules; it’s that the rules live in a manual while the note lives in software that doesn’t enforce them. PrismEHR sums timed units per visit across codes as documentation happens and enforces the 8-minute rule automatically for Medicare patients, and organizations can define their own billing rules, applied at the point of documentation and reinforced at claim creation. That’s the difference between finding a gap while the patient is still on the schedule and finding it in an ADR response. More in our guides to the 8-minute rule and preventing claim denials.