CPT code 97605 is used for billing negative pressure wound therapy (NPWT) on wounds 50 square centimeters or less when performed with a durable medical equipment (DME) system. NPWT, often called a “wound vac,” uses a vacuum-assisted device to remove fluids, reduce swelling, and promote blood flow, accelerating healing for chronic or complex wounds such as diabetic ulcers, pressure sores, and surgical dehiscence.
This code covers the complete session—device application, wound assessment, and patient instructions. Accurate coding is crucial for proper reimbursement, compliance with payer rules, and reducing claim denials. Documentation must include wound size, location, type, NPWT device details, medical necessity, and progress notes.
Choosing the correct NPWT code is essential; CPT 97605 applies only to smaller wounds using DME systems, while other codes (97606, 97607, 97608) cover different sizes or disposable devices. Proper use of CPT 97605 ensures providers are compensated for delivering this advanced wound care service.
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