CPT 97150Physical Therapy

Group therapeutic procedures

CPT code 97150 covers group therapeutic procedures where a therapist works with multiple patients (2 or more) simultaneously performing therapy activities. Each patient receives the same or similar treatment during a shared session.

Showing rates for

National Average

Base Medicare rate

$17.47

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

0.29

PE RVU (NF)

0.24

MP RVU

0.01

Total RVU

0.54

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Document the specific number of patients in the group (must be 2 or more). If only one patient shows up, you must use individual therapy codes instead of 97150.
Impact: Billing 97150 for one-on-one therapy is fraudulent and can trigger $17.47 overpayment recoupment plus potential False Claims Act penalties
Bill 97150 per patient, not per group. If you treat 4 patients in a 30-minute group session, bill 97150 four times (once for each patient).
Impact: Proper billing yields $69.88 total (4 x $17.47) versus $17.47 if incorrectly billed once for the entire group
Ensure time-based documentation shows at least 8 minutes of group therapy. Medicare uses the 8-minute rule; less than 8 minutes cannot be billed.
Impact: Sessions under 8 minutes result in $17.47 denial; 23+ minutes may support billing 2 units at $34.94 total
Append the appropriate therapy modifier (GP, GO, or GN) on every claim to avoid automatic denials and ensure proper tracking against therapy thresholds.
Impact: Missing therapy modifiers cause processing delays or denials, requiring resubmission and delaying $17.47 payment by 30-60 days
Do not bill 97150 on the same day as individual therapy codes (97110, 97112, 97116, etc.) for the same patient unless they are truly separate sessions with modifier 59.
Impact: Improper concurrent billing triggers audits; reviewers often deny the lower-paying code ($17.47 denial) when documentation doesn't support distinct sessions
Maintain a group therapy attendance log with patient names, times, and activities performed. This is critical audit defense documentation.

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 97150 in 2025?

The 2025 Medicare national average payment rate for CPT 97150 is $17.47 for both facility and non-facility settings. This is based on 0.54 total RVUs multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary by geographic locality.

How many patients are required for billing CPT 97150?

A minimum of 2 patients must participate simultaneously to bill CPT 97150. If only one patient is present, you must use individual therapy codes instead (such as 97110, 97112, or 97530). You bill 97150 separately for each patient in the group, not once for the entire group.

Can you bill CPT 97150 and individual therapy codes on the same day?

Yes, but only if they represent distinct and separate therapy sessions. You must append modifier 59 to indicate a separate session and document different start/stop times, different therapeutic activities, or different treatment goals. Billing both for the same session is considered unbundling and may be fraudulent.

What is the difference between CPT 97150 and 97530?

CPT 97150 is for group therapeutic procedures (2+ patients), while 97530 is for therapeutic activities performed one-on-one. The key distinction is the number of patients receiving simultaneous treatment. 97530 reimburses significantly higher (approximately $40-45) because it requires individual attention, whereas 97150 pays $17.47 due to the shared therapist time.

Does CPT 97150 count toward Medicare therapy caps?

Yes, CPT 97150 counts toward Medicare's therapy threshold amounts. In 2025, services exceeding $2,150 require the KX modifier and documentation supporting medical necessity. Physical therapy (GP modifier) and speech-language pathology (GN modifier) share one threshold, while occupational therapy (GO modifier) has a separate threshold.

How do you apply the 8-minute rule to CPT 97150?

CPT 97150 requires at least 8 minutes of group therapy to bill one unit. From 8-22 minutes, bill 1 unit; from 23-37 minutes, bill 2 units; from 38-52 minutes, bill 3 units, and so on. The time counts for each individual patient, so a 20-minute group with 3 patients generates 3 billable units (one per patient), not based on total therapist time.

What documentation is needed to prevent CPT 97150 denials?

Essential documentation includes: (1) names of all patients in the group, (2) exact start and stop times, (3) specific activities performed, (4) each patient's response to treatment, (5) the therapist's constant attendance throughout, (6) appropriate therapy modifier (GP, GO, or GN), and (7) how the group session relates to each patient's individual plan of care goals. A group attendance log is highly recommended for audit defense.