CPT 97597Physical Therapy

Dbrdmt opn wnd 1st 20 cm/<

CPT 97597 covers the removal of dead or damaged tissue from an open wound for the first 20 square centimeters or less. This procedure helps wounds heal properly by cleaning away tissue that could cause infection or slow recovery.

Showing rates for

National Average

Base Medicare rate

$96.72

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

0.77

PE RVU (NF)

2.17

MP RVU

0.05

Total RVU

2.99

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

NCCI bundling edits

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Billing tips

Document exact wound surface area in square centimeters in the medical record, not just descriptive terms like 'small' or 'large'
Impact: Prevents downcoding or denial; ensures correct code selection between 97597 (≤20 sq cm) vs 97598 (each additional 20 sq cm)
Verify place of service coding as facility vs non-facility settings have 65% payment difference ($96.72 vs $33.96)
Impact: Accurate POS coding prevents $62.76 underpayment per procedure in non-facility settings
Do not bill 97597 on the same day as surgical debridement codes (11042-11047) for the same wound; surgical codes take precedence
Impact: Prevents NCCI bundling denials and potential audit flags for unbundling
For wounds larger than 20 sq cm, bill 97597 for the first 20 sq cm plus 97598 for each additional 20 sq cm or part thereof
Impact: Maximizes legitimate reimbursement; a 45 sq cm wound should generate $96.72 + $48.36 + $48.36 = $193.44 (non-facility)
Establish medical necessity by documenting wound healing progression, infection risk, or deterioration requiring debridement
Impact: Reduces denial rate for 'not medically necessary' which accounts for approximately 15-20% of debridement claim denials
Verify frequency limitations per payer policy; Medicare typically covers debridement once per wound per day with appropriate documentation
Impact: Prevents frequency denials; some payers limit to 2-3 times weekly requiring prior authorization for more frequent services

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 97597 in 2025?

The 2025 Medicare national average reimbursement for CPT 97597 is $96.72 in non-facility settings and $33.96 in facility settings. The significant difference reflects practice expense costs included in the non-facility rate. Actual payment may vary based on geographic locality adjustments.

What is the difference between CPT 97597 and 97598?

CPT 97597 covers debridement of the first 20 square centimeters or less of wound surface area, while CPT 97598 is an add-on code for each additional 20 square centimeters (or portion thereof) beyond the first 20. For example, a 45 sq cm wound requires both 97597 and two units of 97598.

Can CPT 97597 be billed with an E/M service on the same day?

Yes, but the E/M service must be separately identifiable and significant beyond the care related to the debridement procedure. Append modifier 25 to the E/M code and ensure documentation clearly distinguishes the evaluation/management service from the wound debridement procedure itself.

How do you calculate wound size for billing CPT 97597?

Measure the wound's longest length and greatest width in centimeters, then multiply to get square centimeters (L × W = area). For irregular wounds, measure the maximum dimensions. Document measurements in the medical record. Wounds ≤20 sq cm use 97597; anything larger requires 97597 plus appropriate units of 97598.

What RVUs are assigned to CPT 97597 for 2025?

CPT 97597 has a total RVU of 2.99, consisting of 0.77 work RVU, 2.17 non-facility practice expense RVU (0.23 facility PE RVU), and 0.05 malpractice RVU. These values are from the CMS Medicare Physician Fee Schedule RVU25A released December 23, 2024.

Can physical therapists bill CPT 97597 for wound debridement?

Yes, physical therapists and occupational therapists may bill CPT 97597 when state practice acts permit wound debridement within their scope of practice and when performed under appropriate physician orders. However, reimbursement policies vary by payer, and some may require physician or podiatrist performance.

What is the difference between selective and non-selective debridement for billing purposes?

CPT 97597 covers both selective debridement (removing only non-viable tissue using sharp instruments, enzymes, or autolysis) and non-selective debridement (removing both viable and non-viable tissue using methods like wet-to-dry dressings or whirlpool). The distinction affects code selection: 97597-97598 are for active debridement, while simple wound care falls under different codes.