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CPT 97161: Physical Therapy Evaluation, Low Complexity
CPT code 97161 represents a low-complexity physical therapy evaluation commonly used in outpatient and ambulatory care settings. It captures the initial assessment performed by a physical therapist that includes a focused history, observation of a stable and uncomplicated status, and evaluation of one to two elements of body structure or functional limitation using standardized tests. The service typically involves 20 minutes of face-to-face time and clinical decision-making of low complexity. Nationally, accurate use of this code affects clinical documentation, care planning, and payment alignment for common musculoskeletal and mobility-related conditions.
Key payers addressed in this publication include Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find a concise overview of clinical criteria for code selection, comparison to frequently billed procedural codes used alongside evaluations, and guidance on typical sites of service where this evaluation is performed. The report summarizes common diagnoses associated with the evaluation, related therapeutic procedure codes, and the context for selecting a low-complexity evaluation versus higher-complexity options. This information is aimed at clinicians, billers, and policy stakeholders seeking clarity on documentation expectations and coding consistency across major payers. Data not available in the input regarding payer-specific reimbursement rates or utilization benchmarks.
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Billing Code Overview
CPT code 97161 describes a physical therapy evaluation of low complexity. The service includes a focused history to identify factors that affect care, observation confirming a stable and uncomplicated status, and assessment of one to two elements of body structure and function or activity limitations (for example, joint flexibility, muscle strength, gait, mobility, or neuromuscular function). Standardized tests and measures are used and clinical decision-making is of low complexity, with typically 20 minutes of face-to-face time with the patient and/or family.
Service type: Physical therapy evaluation (low complexity)
Typical site of service: Outpatient clinic or ambulatory care setting, including physician offices and physical therapy clinics where face-to-face evaluation and testing are performed.
National Reimbursement Benchmarks
National means place Blue Cross Blue Shield highest at $175.7 and Medicare at $101.4, while BUCA’s average commercial benchmark sits between them at $147.3. That positions Medicare about $46 lower than BUCA and roughly $74 lower than Blue Cross Blue Shield, indicating Medicare reimbursement for CPT 97161 is substantially below typical commercial levels but closer to some large commercial payers.
Dispersion (P75 minus P25) highlights which payers have tighter versus wider spreads: Aetna’s spread is $68.0, Blue Cross Blue Shield $92.3, Cigna $40.5, UnitedHealth Group $39.0, and BUCA $47.0. UnitedHealth Group and Cigna show the tightest mid-distribution spreads (around $39–$41), while Blue Cross Blue Shield is the widest at $92.3, with Aetna also relatively wide at $68.0, suggesting greater variability among commercial contracts for those payers.