Evaluation & management · Hand

97166

Occupational therapy evaluation of moderate complexity, covering an expanded history, assessment of several performance deficits, and a care plan with some modification options.

3 sources ↓

Medicare
$100.54
Work RVU
1.54
Global, days
Region
Hand
Drawn from CMS

Documentation requirements

What must appear in the operative or office note to support the claim.

Source · Editorial brief grounded in 3 cited references ↓

  • Occupational profile and medical history review
  • Performance deficits identified (physical, cognitive, or psychosocial)
  • Standardized assessments with scores
  • Clinical decision making and analysis of options
  • Plan of care with goals and frequency
  • Total evaluation time

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

What this code covers

Source · Editorial summary grounded in 3 cited references ↓

97166 is the moderate-complexity occupational therapy evaluation. It sits between the low (97165) and high (97167) levels. The level depends on the history, the number of performance deficits, and the clinical decision making, with about 45 minutes as the typical time face to face with the patient and family.

Ortho practices with hand therapy bill it after flexor tendon repair, distal radius fracture fixation, carpal tunnel release with complications, or reverse shoulder replacement when ADL function is the focus. A patient with deficits in grip, dressing, and work tasks, plus a comorbidity like diabetes affecting healing, often fits moderate complexity.

The common problem is picking the level by time alone. Time is a guide; the elements decide it. Document the occupational profile, the deficits found, the standardized tests used (grip dynamometry, QuickDASH), and the plan. Use the GO modifier for Medicare. Re-evaluation is 97168, not another 97166. Only one evaluation per episode unless there is a new diagnosis or significant change.

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU vs. total RVU

The work RVU (1.54) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (3.01) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU 1.54
Practice expense RVU 1.46
Malpractice RVU 0.01
Total RVU 3.01
Medicare national rate $100.54
Global period days

Payment by site of service

Medicare pays different rates by setting. HOPD typically pays substantially more than ASC for the same procedure.

Source · CMS OPPS Addendum B·ASC HCPCS payment rates·2026

SettingMedicare rate (national)
Office (PFS non-facility)
Procedure performed in physician's office
$100.54

Common denial reasons

The recurring reasons claims for CPT 97166 get rejected.

Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓

  • Complexity level not supported by documented elements
  • Billed as a re-evaluation (should be 97168)
  • Second evaluation in the same episode without new diagnosis
  • Missing GO modifier
  • Plan of care not certified for Medicare

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 3 cited references ↓

01What makes an OT evaluation moderate complexity?
An expanded history, three to five performance deficits, and moderate analytic decision making. Time alone does not set the level.
02Can a hand therapist bill 97166?
Yes, when the hand therapist is an occupational therapist. A PT-credentialed hand therapist uses PT evaluation codes.
03What code is used for an OT re-evaluation?
97168.

Sources & references

Editorial content was developed using the following public sources.

  1. 01CMS Physician Fee Schedule 2026
  2. 02
    cms.gov
    https://www.cms.gov/medicare/payment/fee-schedules/physician
  3. 03
    cms.gov
    https://www.cms.gov/regulations-and-guidance/guidance/manuals/downloads/bp102c15.pdf

Mira Scribe

Mira Scribe pulls the occupational profile, deficits, test scores, and plan into the note, so the moderate complexity level is supported by the record and not just the clock.

See how Mira captures CPT 97166 documentation

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