CPT 97606Physical Therapy

Neg prs wnd ther dme>50 sqcm

CPT code 97606 covers negative pressure wound therapy (NPWT) using durable medical equipment for wounds larger than 50 square centimeters. This involves using a vacuum device to promote healing in large wounds by removing fluid and promoting blood flow.

Showing rates for

National Average

Base Medicare rate

$50.14

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

0.6

PE RVU (NF)

0.94

MP RVU

0.01

Total RVU

1.55

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

NCCI bundling edits

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Billing tips

Precisely measure and document wound surface area in square centimeters in the medical record. The 50 sq cm threshold is the dividing line between 97605 ($41.12) and 97606 ($50.14).
Impact: Accurate measurement prevents $9.02 underpayment per session when wounds exceed 50 sq cm; auditors commonly scrutinize wound size documentation
Verify place of service code accuracy as this significantly impacts reimbursement. Bill POS 11 (office) for non-facility rate ($50.14) versus POS 22 (outpatient hospital) for facility rate ($25.55).
Impact: Incorrect POS coding can result in $24.59 payment difference (96% variance), and systematic errors trigger audits
Bill 97606 for the clinical service of applying/managing NPWT separately from DME supply codes (A6550-A6556). The CPT code covers professional work, not equipment rental.
Impact: Ensures full reimbursement for both professional service and equipment; bundling these services can forfeit $50.14 per application
Document medical necessity including wound etiology, size measurements, previous failed treatments, and expected healing outcomes. Link to appropriate ICD-10 codes for wound location and type.
Impact: Reduces denial rate by 40-60% according to wound care audits; medical necessity is the primary reason for 97606 denials
Check therapy cap status for Medicare beneficiaries. 97606 counts toward the annual outpatient therapy threshold ($2,230 in 2025), after which KX modifier documentation is required.
Impact: Missing KX modifier after threshold can result in automatic denial; proactive tracking prevents payment delays
Limit billing frequency to match actual NPWT application sessions, typically 2-3 times per week. Do not bill daily unless dressing changes require professional intervention and are documented.

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 97606 in 2025?

The 2025 Medicare national average reimbursement for CPT 97606 is $50.14 in non-facility settings and $25.55 in facility settings. Actual payment may vary by geographic location based on locality-specific adjustments to the conversion factor.

What is the difference between CPT 97605 and 97606?

The difference is wound size: CPT 97605 is for negative pressure wound therapy on wounds ≤50 square centimeters ($41.12 Medicare rate), while 97606 is for wounds >50 square centimeters ($50.14 Medicare rate). Accurate measurement and documentation of wound surface area is essential for correct code selection.

Can CPT 97606 be billed with an evaluation code on the same day?

Yes, but documentation must clearly show the evaluation and NPWT application were distinct and separately identifiable services. The evaluation should be medically necessary beyond the work inherent in applying NPWT. Modifier 25 may be required on the E/M code, and detailed time/service documentation reduces denial risk.

How often can CPT 97606 be billed for the same patient?

Frequency depends on medical necessity and the NPWT protocol, typically 2-3 times per week for dressing changes. Daily billing is scrutinized and requires clear documentation of clinical need. Medicare and commercial payers may have frequency limitations requiring prior authorization for treatment beyond standard protocols.

Does CPT 97606 include the cost of NPWT equipment and supplies?

No, CPT 97606 covers only the professional service of applying and managing NPWT. The durable medical equipment (pump rental) and disposable supplies are billed separately using HCPCS codes A6550-A6556 and E2402. Billing both ensures complete reimbursement for all components of care.

What documentation is required to support medical necessity for CPT 97606?

Required documentation includes wound measurements proving >50 sq cm, wound etiology and diagnosis, evidence of failed conservative treatments, clinical rationale for NPWT, treatment goals, and patient's candidacy for therapy. Photographic documentation with measurements and detailed wound assessment notes strengthen medical necessity.

What are the RVUs for CPT 97606 in 2025?

The 2025 RVUs for CPT 97606 are: Work RVU 0.6, Practice Expense RVU 0.94 (non-facility) or 0.18 (facility), and Malpractice RVU 0.01, for a total of 1.55 non-facility RVUs. These are multiplied by the 2025 conversion factor of 32.3465 to determine Medicare payment rates.