CPT® Code 97750

Quick Reference: CPT 97750

• What it is: CPT 97750 is a physical performance test or measurement (musculoskeletal or functional capacity) performed one-on-one with a patient and requiring a written report. It is commonly used for Functional Capacity Evaluations (FCEs), isokinetic testing, and other standardized functional performance batteries that go beyond routine evaluation elements.
• Timed code: Billed in 15-minute units. Medicare time rules (including the “8-minute rule”) apply to unit selection when this service is billed as outpatient therapy.
• Medicare MUE: Medicare’s Medically Unlikely Edit (MUE) is commonly cited as 8 units per patient per day (2 hours). Claims exceeding the edit typically deny the excess units (and may trigger broader review).
• Same-day restrictions: Medicare’s NCCI policy guidance treats 97750 as not separately reportable with PT/OT evaluation and re-evaluation codes (97161–97168) by the same provider/specialty on the same date of service.
• Therapy modifiers: For outpatient therapy billing, Medicare requires the correct therapy discipline modifier (GP for PT, GO for OT) for “always therapy” reporting logic that includes 97750.
• Written-report requirement: The clinical record should contain a distinct testing report: what tests were administered, objective results, interpretation, and how the findings affect function and the plan of care.

Clinical Use and Functional Assessment Scope

CPT 97750 is used to formally measure a patient’s physical performance through standardized testing procedures that generate objective findings and require a written report.

The CPT descriptor (“physical performance test or measurement … with written report, each 15 minutes”) signals two core ideas: (1) the service is performance testing, not treatment; and (2) the service includes reporting and interpretation, not just data collection.

In outpatient rehabilitation, 97750 is frequently associated with Functional Capacity Evaluations (FCEs), work-capacity or disability-related functional batteries, and specialized testing such as isokinetic dynamometry, balance scales, gait speed tests, and endurance protocols.

A practical way to decide whether 97750 is appropriate is to ask: “Did the clinician administer a structured performance test battery that produces objective values, and did they produce a distinct interpretive report that informs clinical decisions?”

If the answer is yes, 97750 may fit. If the activity looks like routine evaluation elements (range of motion, basic manual muscle testing, routine functional observation), or if the activity was primarily therapeutic intervention, then another code is usually more appropriate.

Medicare coverage and coding articles discussing outpatient therapy emphasize that 97750 is intended for testing beyond the usual evaluation process and that the written report is integral to the code.

What types of tests commonly support 97750?

Tests frequently reported under 97750 include: walk tests (e.g., 6-minute walk), timed up-and-go, gait speed protocols, balance scales (e.g., Tinetti-type testing or other validated balance measures), lifting/carrying/push-pull capacity tests, repetitive task tolerance testing, and instrumented strength/endurance evaluation such as isokinetic testing when accompanied by a written report.

The key is that the service is administered one-on-one with continuous clinician involvement and yields standardized outputs that can be compared to baseline, norms, job demands, or functional goals.

What 97750 is not

97750 is not a substitute for the PT/OT evaluation codes (97161–97163; 97165–97167) or re-evaluation codes (97164; 97168). Medicare’s NCCI policy guidance indicates that 97750 is not separately reportable with those evaluation code families by the same provider/specialty on the same date of service, because the evaluation is expected to include the basic testing that establishes impairments and functional limitations.

That restriction drives operational planning: if a clinician expects a true formal performance test requiring 97750, it is generally safer to schedule it on a different day than the initial evaluation.

Who can perform and bill 97750?

In outpatient settings, 97750 is typically furnished by physical therapists and occupational therapists, and it can also be used by physicians in contexts where they personally perform or supervise performance testing and produce the report.

AAPC’s code overview emphasizes the “tests and measurements” nature of the service and the requirement for documentation/reporting.

When billed as therapy, Medicare expects qualified professional involvement and an established plan of care. The practical compliance point is that the code’s value is in skilled selection of tests, safety monitoring, standardized administration, and clinical interpretation—not merely having the patient “do activities.”

Medicare Billing Rules and Frequency Limits

Medicare Part B treats 97750 as a timed service when billed under outpatient therapy rules, so time counting, documentation of minutes, and unit selection are central.

Medicare also applies claim edits and policy expectations to prevent routine or duplicative use—particularly when 97750 resembles elements already included in evaluation or when it is used frequently without a clear clinical trigger.

CMS policy sources consistently frame 97750 as a specialized, non-routine service that should be performed only when medically necessary and supported by a distinct report.

Timed-unit billing and the 8-minute rule

For timed outpatient therapy services, Medicare applies the standard threshold logic (commonly referred to as the “8-minute rule”) for selecting the number of 15-minute units.

The clinician should document the total direct one-on-one minutes spent administering and supervising the performance test(s) that day.

When multiple tests are performed in the same session under 97750, their one-on-one minutes are aggregated to determine the units billed, as long as the time reflects the performance testing service and not separate non-billable tasks.

CareCloud’s coding guidance for 97750 explicitly describes it as a timed code and reinforces the importance of documenting time, objective findings, and a report to support payment.

A frequent audit vulnerability is mixing patient-contact testing time with post-service scoring or report writing time. For Medicare timed coding, only the direct one-on-one time is typically counted toward units, while the written report remains a required component of the service but is not separately time-counted unless payer-specific rules say otherwise. If the record is unclear, auditors may downcode units.

The cleanest approach is to document: (1) start/stop times or total minutes of direct testing; and (2) a distinct report section that includes results and interpretation.

Medicare MUE and daily unit expectations: An MUE of 8 units per day is widely cited for CPT 97750 (2 hours) and is often treated operationally as a hard ceiling for Medicare billing on a single date of service. If an FCE or testing battery truly requires more than 2 hours, clinics often split the service across multiple dates or obtain payer-specific authorization (where applicable) rather than billing beyond the MUE.

Frequency across an episode of care

Medicare does not publish a single universal “once per episode” limit for 97750, but policy guidance and contractor articles describe formal testing as something that should be used sparingly and only when clinically necessary—commonly at baseline, at a major change point, or near discharge to objectively quantify outcomes and guide decisions.

Noridian’s therapy evaluation/re-evaluation and formal testing article describes formal testing codes as separately reimbursable only when medically necessary and supported by a distinct signed report that is incorporated into the plan of care.

In practice, repeated billing of 97750 (e.g., weekly) without a compelling clinical reason increases the chance of denial as not reasonable and necessary.

NCCI bundling and same-day restrictions

Medicare’s NCCI policy manual sets out coding policies that limit reporting certain services together on the same day to prevent double billing for overlapping components.

For 97750, a major restriction is the prohibition on reporting 97750 on the same day as PT/OT evaluation or re-evaluation codes by the same provider/specialty.

Contractor billing articles reinforce this operationally: if clinicians try to add 97750 to an evaluation day for “extra testing,” it is likely to deny unless performed by a different specialty under conditions that legitimately support separate reporting.

Therapy plan of care, certification, and medical necessity

When billed under outpatient therapy, the service generally needs to fit into an established plan of care that is certified per Medicare rules.

A defensible 97750 claim typically shows (a) why performance testing is needed; (b) what decision it informs (return-to-work restrictions, discharge readiness, progress plateau analysis); and (c) how results are used to modify goals or treatment planning.

CMS contractor guidance emphasizes that the test results should be incorporated into the plan of care rather than performed for documentation-only purposes.

Facility vs Non-Facility Payment Differences

Medicare payment for CPT services frequently differs by site of service because practice expense allocation changes when a facility is paid separately for overhead.

In simplified terms, non-facility settings (e.g., private practice clinics) often receive higher allowed amounts because the professional fee includes more practice expense, while facility settings (e.g., hospital outpatient departments) often have lower professional allowed amounts because the facility receives payment through other mechanisms.

The CMS Physician Fee Schedule rulemaking documents provide the broader framework for how Medicare payment policies are set each year, including practice expense and site-of-service considerations.

For operational compliance, the main risk is misreporting the place of service or billing under the wrong entity (for example, billing as office/non-facility when the service was furnished in a hospital outpatient department).

Incorrect POS reporting can trigger payment corrections, recoupments, or denial.

Although exact rates vary by year and locality, the consistent pattern is that facility allowed amounts are materially lower than non-facility allowed amounts for many timed therapy-type services. Clinics should verify their payer’s current year fee schedule and ensure the correct POS is used on claims.

Because 97750 may be furnished on the same date as other therapy services, clinics should also be aware that Medicare applies payment logic for multiple therapy services on the same day (including reductions to practice expense for second and subsequent codes in some circumstances).

When the goal is a multi-unit test session, scheduling the testing on a separate date can reduce complexity: it avoids NCCI evaluation conflicts and can simplify time accounting and payment predictability.

Modifier Usage and Global Period Rules

Modifiers determine whether claims process cleanly under Medicare edits and whether services are correctly attributed to therapy discipline, assistant involvement, thresholds, or distinctness. For 97750, the modifier set is predictable: discipline modifier (GP/GO) is the most frequent; CQ/CO applies when a therapy assistant provides a substantial portion; KX may apply when therapy thresholds are exceeded; 59/XS/XU is used only in narrow “distinct service” situations; and 25 applies to an E/M code when a physician performs a separate E/M visit on the same date.

CMS transmittal guidance about therapy modifiers identifies 97750 as requiring therapy modifiers for Medicare processing when billed under therapy.

GP/GO discipline modifiers

For outpatient therapy claims, append GP (physical therapy plan of care) or GO (occupational therapy plan of care) as required for Medicare’s therapy modifier logic.

Operationally, missing GP/GO is a high-frequency billing error that can lead to claim rejection or misclassification of therapy spending.

CQ/CO therapy assistant modifiers

When Medicare rules require assistant modifiers to indicate that a therapy assistant furnished a significant portion of the service, use CQ (PTA) or CO (OTA) alongside the discipline modifier.

Because 97750 is a skilled testing and interpretive service, many organizations restrict or limit assistant involvement in administering formal test batteries. If assistants do participate (for example, helping set up standardized tasks under direct therapist control), document the division of labor clearly and apply required modifiers when thresholds are met.

KX modifier and therapy thresholds

When therapy spending thresholds are exceeded, Medicare uses KX as an attestation that services remain medically necessary.

While threshold amounts change across years, the compliance logic is stable: KX should only be used when documentation supports continued skilled need.

If 97750 is billed beyond the threshold, the report should make it clear why objective formal testing is needed at that point (e.g., discharge readiness decision, work restrictions determination, suspected plateau).

Modifier 59 (or X{E,S,P,U}) for distinct services

Modifier 59 is used to indicate a distinct procedural service when NCCI edits allow an override (indicator “1”) and documentation supports distinctness.

For 97750, the most defensible “distinctness” cases are when different specialties provide different services on the same date and an edit applies, or when two separate sessions genuinely exist and policy permits separate reporting.

The NCCI policy manual provides the conceptual framework: modifiers are appropriate only when the services are truly distinct (different encounters, different specialties, or other permitted distinctions).

Clinics should avoid using 59 to attempt to bypass the evaluation-day restriction for the same specialty; that is a common denial pattern.

Modifier 25 for physician E/M on the same day

If a physician provides a significant, separately identifiable E/M service on the same day as 97750, modifier 25 should be appended to the E/M code (not to 97750) to indicate that the E/M is separate from the procedure.

The record should show a distinct E/M assessment and medical decision-making plus a separate performance test report.

Global surgical period considerations

97750 is not a surgical code and generally does not have its own global period.

However, when the same surgeon (or same specialty group) furnishes services within a post-operative global period, the billing question becomes whether the service is considered routine post-op care or a separately payable unrelated service.

In many orthopedic pathways, formal performance testing is performed by therapy providers rather than by the surgeon, which generally avoids global surgical bundling issues for the surgeon’s claim.

When a surgeon does furnish testing, internal compliance review should confirm whether the payer would consider it included in post-op care or separately payable as unrelated.

Required Documentation Elements

Documentation is the core compliance requirement for 97750. Unlike many therapy treatment codes where a daily note may be sufficient, 97750 explicitly requires a written report describing the test(s) performed and the findings.

CMS contractor articles describe formal testing as separately reimbursable only when supported by a distinct signed report that includes results, interpretation, and incorporation into the plan of care.

Contractor outpatient therapy billing guidance further frames 97750 as testing beyond usual evaluation elements and emphasizes the written-report requirement.

Minimum defensible elements

• Clinical reason for testing: State the functional question being answered (return-to-work readiness, fall risk quantification, discharge readiness, need for objective progress data, etc.).
• Specific tests administered: Name the standardized tools and tasks (e.g., 6MWT, TUG, isokinetic protocol, lift/carry battery), including any equipment used.
• Objective results: Provide quantitative outputs (distance, seconds, weight, score, repetitions, physiological responses if relevant), including comparisons to baseline or norms when appropriate.
• Interpretation: Translate results into functional meaning (what the numbers imply about endurance, safety, work level, fall risk, or ADL capacity). AAPC’s code overview underscores that the clinician completes a written report reflecting the findings.
• Impact on plan of care: Explicitly tie findings to goals and planned interventions, restrictions, discharge planning, or referrals.
• Time and units support: Document total one-on-one testing minutes to support units, consistent with timed-code documentation expectations described in coding resources.
• Signature and date: The report should be signed/dated and clearly attributable to the qualified professional who interpreted the results.

Common denial triggers

Denials often arise when the record looks like a standard PT/OT evaluation (history, systems review, basic ROM/strength) with no distinct performance test report, or when 97750 is billed on the same date as evaluation/re-evaluation codes in a manner inconsistent with NCCI policy.

Another common issue is “thin reporting”: listing tasks but not reporting objective results, or reporting results but failing to interpret them or connect them to clinical decisions.

From a payer perspective, the code’s purpose is to create reliable, objective function data that changes decisions; documentation should therefore show that decision pathway explicitly.

For longer FCE-style reports, structured templates are often useful: they standardize test naming, data capture, safety screening, symptom response, and interpretation sections. Templates also help demonstrate that testing is systematic and replicable, which matters in work-comp and disability contexts and supports the “formal test” characterization in Medicare contexts.

flowchart TD
    A["Service Performed"] --> B{"Was the service\nprimarily testing\nor treatment?"}
    B -->|"Testing with\nwritten report"| C{"Same day as\nPT/OT eval/re-eval?"}
    B -->|"Therapeutic\nintervention"| D{"One-on-one\nor group?"}
    B -->|"Medical evaluation\n& management"| E["Bill E/M code"]
    C -->|"No"| F["Bill CPT 97750\n+ GP/GO modifier"]
    C -->|"Yes, same provider"| G["Do NOT bill 97750\nNCCI restriction"]
    D -->|"One-on-one"| H["Bill CPT 97530"]
    D -->|"Group setting"| I["Bill CPT 97150"]
    F --> J{"Therapy assistant\ninvolved?"}
    J -->|"Yes"| K["Add CQ or CO modifier"]
    J -->|"No"| L["Submit claim"]
    K --> L

CPT Comparison Table: 97750 vs 97530 vs 97150 vs E/M

Choosing the correct code is easier when the intent is clear: 97750 measures function; 97530 treats function; 97150 treats in a group setting; E/M manages the broader medical condition.

Medicare policy and contractor guidance emphasize that 97750 should not be used to “add on” to routine evaluations and should be supported by formal testing and reporting.

Real-World Clinical Scenarios

The scenarios below illustrate compliant coding patterns that align with Medicare’s core themes: distinctness from evaluation, skilled one-on-one testing, time-based units, and a written report that drives decisions.

They also show when payer-specific limits (especially the MUE) matter operationally.

Scenario A: Pre- and Post-Surgical Functional Assessment

Situation: A patient scheduled for spine surgery needs objective baseline function for return-to-work planning.

Service: A PT conducts a one-hour battery: lift/carry, timed stair test, walk tolerance, positional tolerance.

Coding: 97750 for 4 units on a date separate from the evaluation (avoids same-day evaluation restriction).

Documentation: Report includes objective results and an interpretation that informs post-op therapy goals and restrictions, consistent with Medicare contractor expectations for formal testing reports.

Follow-up: Three months post-op, a two-hour discharge FCE is performed (8 units, within the commonly cited MUE ceiling).

The report shows improved capacity but remaining deficit versus job demand; the plan changes to short-term work conditioning.

Scenario B: Work Capacity Evaluation for Return-to-Work

Situation: A workers’ compensation insurer requests an FCE after an injury episode.

Service: OT administers a structured battery (lifting, carrying, push-pull, positional tolerance, job-simulation tasks) with safety monitoring.

Coding strategy: For Medicare, clinics typically limit billing to 8 units per day and split across days if needed; for work-comp, payer authorization may allow longer same-day sessions, but Medicare’s logic is a useful internal benchmark.

Documentation: A multi-page report includes objective findings, internal consistency observations, and a clear functional conclusion that translates results into work level.

Scenario C: Mid-Episode Formal Reassessment for Decision Making

Situation: A neurologic rehab patient shows mixed progress; the therapist needs objective data to justify plan changes and continued skilled care.

Service: A 30-minute dedicated testing session with standardized tools (e.g., gait speed protocol and balance scale) performed on a separate date from any formal re-evaluation code to avoid same-day conflicts.

Coding: 97750 for 2 units.

Documentation: Report shows numerical improvement from baseline plus interpretation (fall risk level change) and a specific plan adjustment, aligning to “formal testing” expectations described by Medicare contractor guidance.

Scenario D: Physician E/M Plus Performance Testing

Situation: Sports medicine physician evaluates post-ACL reconstruction and wants objective strength symmetry data.

Service: Isokinetic testing is performed with physician review and interpretation.

Billing: Bill E/M for the visit and apply modifier 25 to the E/M if the E/M is significant and separately identifiable; bill 97750 for the testing with a distinct report.

Documentation: E/M note supports medical decision-making; testing report documents protocol, objective torque values, limb symmetry index, and return-to-sport implications. The concept of 97750 as a report-based measurement service is consistent with code descriptions and contractor expectations.

Across these scenarios, the recurring compliance features are consistent: the service is distinctly testing (not treatment), time is clearly supported, evaluation-day conflicts are avoided, and the report is robust enough that a reviewer can see why the testing was medically necessary and how it affected care planning.

Those are the elements that typically separate payable formal testing from routine therapy monitoring.