Physical therapy SOAP notes that survive review

A Medicare reviewer reads a physical therapy SOAP note backward, at least by the profession’s logic. She starts at the claim: two units of 97110, one of 97530. Then she works through the note looking for language that justifies each code, minutes that justify each unit, and a signature that makes someone accountable for both. CMS’s compliance page for PTs in private practice shows how that reading tends to end: insufficient documentation accounted for 88.6% of improper payments to PTs in private practice in the 2024 reporting period. Missing documentation added another 8.3%. The care mostly happened. The notes could not carry it.

So skip the template. The useful spec for a SOAP note is the reviewer’s checklist, and Medicare publishes it.

What goes in each section of a physical therapy SOAP note?

In a PT SOAP note, the subjective section records the patient’s report in usable detail, and the objective section records each intervention in language that matches the claim, plus both treatment-time totals. The assessment carries the therapist’s judgment about progress toward the plan-of-care goals, and the plan says what happens next visit and why. That division comes from the profession, though. Medicare never asks for it by name.

The Medicare Benefit Policy Manual, chapter 15 says of daily treatment notes that “the format shall not be dictated by contractors.” The billing and coding article attached to the Medicare contractor policy for outpatient therapy goes further: “Documentation may be submitted in any format as long as all the necessary information is captured.” What the manual dictates is contents, and SOAP persists because it is a good container for them.

What Medicare requires in the daily treatment note

Chapter 15, section 220.3 requires a note for every treatment day, with four elements:

• the date of treatment
• each intervention provided and billed, “in language that can be compared with the billing on the claim to verify correct coding”
• the total timed code treatment minutes and the total treatment time
• the signature and professional identification of whoever furnished or supervised the treatment

Notice what is absent. The patient’s self-report, the S the format is named for, sits on the manual’s optional list. So does most of what a therapist would call assessment. Chapter 15 says outright that the treatment note “is not required to document the medical necessity or appropriateness of the ongoing therapy services.” The daily note’s legal job is narrower than the format built around it: prove what was done and for how long, in words a stranger can line up against a claim form. When the subjective earns its place, it is concrete: chapter 15’s own model of a useful patient-report line is “Patient reports pain after 20 repetitions.”

The two time totals are different numbers doing different work. Timed code treatment minutes cap the day’s billable units; the manual’s sentence is “The billing and the total timed code treatment minutes must be consistent,” which is arithmetic a reviewer can run with no clinical judgment at all. Total treatment time adds the untimed codes and drops anything unbillable, rest periods included. The billing and coding article tells you to document both “to justify the units billed,” and CMS’s September 2025 documentation fact sheet lists missing total time among the common errors its reviewers find. One more instruction hides in the fine print: record every timed-code service even when you do not bill it, because unbilled timed minutes can change the day’s unit math. How that math works, and where software should check it, is the subject of our piece on AI CPT coding.

How often does Medicare require a progress report?

At least once every 10 treatment days, and the count starts on day one of the episode, evaluation included. The same section of chapter 15 holds the parts practices miss: the report must come from the therapist, since an assistant’s notes can contribute elements but are “not complete progress reports,” and a stand-alone progress report needs no physician signature.

If the daily note proves what happened, the progress report proves it was worth paying for. Chapter 15 opens the section with “The progress report provides justification for the medical necessity of treatment.” Its required contents read like a payer’s cross-examination: an assessment of improvement and the “extent of progress (or lack thereof) toward each goal,” plans for continuing treatment, and any changes to goals. For rehabilitative care the manual even scripts the argument. The record needs objective evidence, or a clinically supportable expectation, that the condition “has the potential to improve or is improving in response to therapy, maximum improvement is yet to be attained,” on a predictable timeline.

Two mercies are written into the rule. If every required progress-report element appears in the daily notes at least once during the period, no separate report is due. And the discharge note is simply the episode’s final progress report, covering everything since the last one. Above both note types sit the evaluation and the plan of care, carrying diagnoses, long-term goals, and the type, amount, frequency and duration of therapy. A physician or NPP certifies that plan within 30 days of the first treatment and recertifies it at least every 90 days. The timing traps in that chain, and what happens once a contractor starts pulling charts, are in our guide to Medicare PT audits; the commercial payers’ versions of the necessity test are in how payers define medical necessity.

What does skilled care language sound like?

Like a decision. Chapter 15’s standard is that services must require “the expertise, knowledge, clinical judgment, decision making and abilities of a therapist” that the patient, a caregiver or an aide cannot supply. It also names the evidence it wants: descriptions of the skilled treatment, and “changes made to the treatment due to a clinician’s assessment of the patient’s needs on a particular treatment day.”

LCD L33631, the Medicare contractor policy at its current April 2026 revision, draws the other side of the line. Services that do not require a therapist’s professional skills “are not medically necessary, even if they are performed or supervised by a therapist.” And the moment treatment “becomes repetitive and does not require the unique skills of a therapist, the services are non-covered.”

The LCD supplies its own worked case. Early after a total knee replacement, the exercise bike is skilled care: the therapist progresses pedal-rocks toward full revolutions, adjusting seat height and resistance against the patient’s response. Once the patient can ride safely without that assessment and progression, the same ten minutes on the same bike becomes an independent program, no longer covered, and a warm-up on it is “a non-skilled, unbillable service” excluded from the timed minutes.

Same bike, same patient, different note. Skilled is not a property of the exercise; it is a property of what your judgment did to it, and the note has to say what that was. “Continued ther ex, tolerated well” describes attendance. “Progressed to 5 lb after two clean sets at 3 lb with no extensor lag” describes a decision. APTA calls clinical documentation “a professional responsibility and a legal requirement,” and the legal half is decided at exactly this level of wording.

A SOAP note example a reviewer can verify

Here is a daily note for a patient five weeks after a right total knee arthroplasty, billed as one unit of 97110, one unit of 97530 and unattended electrical stimulation. Every name is invented.

S: Right knee stiffness 4/10 after sitting, easing with movement. Home program completed five of seven days. Descends stairs step over step with the rail at home, still one at a time without it.

O: Warm-up, stationary bike, independent, 5 min; not billed, not counted below. Therapeutic exercise (97110), 15 min: seated knee extension progressed from 3 lb to 5 lb after two sets of ten at 3 lb with no extensor lag; standing hamstring curls at 5 lb. Therapeutic activities (97530), 12 min: step-ups progressed from a 4-inch to a 6-inch step; cued weight shift onto the right leg during ascent. Unattended electrical stimulation, right quadriceps, 13 min. Timed code treatment minutes: 27. Total treatment time: 40 minutes.

A: Right knee flexion 98 degrees, from 92 on August 11. Extensor lag resolved. Progressed resistance and step height this visit based on quad activation; continues to require skilled progression of load and step height to reach reciprocal stair climbing, goal 2 in the plan of care.

P: Continue twice weekly per the certified plan. Attempt reciprocal descent next visit if no effusion. Progress report due next visit, the tenth since evaluation.

Signed: Dana Okafor, PT, DPT.

Now run the reviewer’s backward reading against it. Each billed code has a named intervention in the vocabulary the LCD assigns it: the 97110 line is strength and range progressed against a measured deficit, the 97530 line is a functional activity advanced toward a functional goal. Twenty-seven timed minutes supports two units under Medicare’s count, split the way the minutes actually fell. The total includes the untimed stimulation and excludes the bike. The assessment holds two measurements and one decision. And the signature makes Dana the author of all of it.

Where an AI draft fits

Nothing above is intellectually hard. The catch is volume. That example carries roughly two hundred words of specific, checkable content, and a full caseload needs a dozen notes like it every day, written by the person whose hands and attention were occupied all session. Notes go thin because the writing competes with the treating, and the treating wins.

That is the problem an ambient scribe exists for. Aurora, the AI scribe built into Orion, listens to the visit and drafts the PT-specific note: the progression and the reason for it, the cue, the stair report, the minutes against each timed code. Focus on your patient, not your keyboard. The therapist stays the author. She reads the draft, corrects anything the room got wrong, and before she signs, Aurora suggests the CPT codes the note’s own language supports, for her to confirm or change. The claim then builds from the signed note, and the claim scrub checks units against documented treatment time before anything goes out. Aurora is included on both plans.

The 88.6% gets read as an indictment of how therapists write. Read it the other way. Reviewers almost never conclude that the care was wrong; they conclude that the record is silent. Every visit you ran today already contained the measurement and the decision. The only question is whether they made it into the note before the next patient walked in.