CPT 97161: PT eval, low complexity
What this code means, what it should cost, and how to dispute an overcharge.
Fair Price Reference
What is CPT 97161?
CPT 97161 (PT eval, low complexity) is a physical therapy billing code defined by the American Medical Association. It's used to bill your insurance or you directly for this service.
What CPT 97161 should cost
The Centers for Medicare & Medicaid Services (CMS) pays approximately $78 for CPT 97161 under the 2025 Physician Fee Schedule. This is what the federal government has determined is a reasonable payment for this service.
Private insurance typically pays 1.2–1.8x Medicare rates ($94–$140). Hospital chargemaster prices for CPT 97161 often range from $120 to $400 — a markup of 1.5x to 5.1x over Medicare.
Common overcharges on CPT 97161
Billing multiple units when total treatment time doesn't support it (each timed code requires at least 8 minutes per unit). Billing untimed codes multiple times per session.
About Physical Therapy billing
Physical therapy services are billed in 15-minute timed units. The 8-minute rule governs when a unit can be billed — a common source of overbilling.
Request the PT treatment log. Verify that total face-to-face time supports the billed units under the 8-minute rule.
How to dispute a CPT 97161 overcharge
- Request the itemized bill. You are entitled to a detailed line-by-line bill showing every CPT code billed. Ask in writing.
- Compare to Medicare allowable. If the charge exceeds 150% of Medicare ($117), you have grounds to dispute.
- Request documentation. For E&M codes, ask for the visit note. For procedures, ask for the operative report. The documentation must justify the code billed.
- Send a formal dispute letter. Cite the specific discrepancy between the documentation and the code. Reference Medicare rates and NCCI edits where applicable.
- Follow up in writing. Give the provider 30 days to respond. If they don't, escalate to the state attorney general and insurance commissioner.
Got CPT 97161 on your bill?
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