ICD code definitions

CPT® Code 97598: Debridement, Open Wound; Each Additional 20 sq cm

July 30, 2026
3 min read
CPT® Code 97598

CPT® Code 97598 is used to report debridement of an open wound involving each additional 20 square centimeters, or part thereof, when performed beyond the initial wound area reported with the appropriate primary debridement code.

Debridement involves the removal of devitalized, necrotic, or nonviable tissue from an open wound to support wound healing and reduce barriers to recovery. CPT 97598 is an add-on code and is reported in conjunction with CPT 97597 when the total wound surface area requires debridement beyond the initial 20 sq cm.

This code represents the debridement service and should be supported by documentation of the wound location, size, tissue removed, and depth of tissue debrided.

Key Facts About CPT® 97598

  • Service type: Wound care / surgical debridement
  • Procedure: Debridement of an open wound
  • Size: Each additional 20 sq cm, or part thereof
  • Primary code: Typically reported with CPT 97597
  • Purpose: Remove devitalized or nonviable tissue to facilitate wound healing
  • Provider type: Physicians and qualified healthcare professionals

Common clinical indications:

  • Chronic ulcers
  • Diabetic wounds
  • Pressure ulcers
  • Venous leg ulcers
  • Traumatic open wounds
  • Other wounds requiring medically necessary debridement

When to Use CPT® 97598

CPT 97598 is appropriate when:

  • Debridement is performed on an open wound
  • The wound area requiring debridement extends beyond the initial 20 sq cm
  • Additional 20 sq cm increments, or portions thereof, are debrided
  • The procedure is medically necessary and appropriately documented

Examples:

  • Debriding a chronic wound measuring more than 20 sq cm
  • Performing additional debridement on a diabetic ulcer extending beyond the initial 20 sq cm
  • Removing devitalized tissue from a large traumatic wound
  • Performing wound-bed preparation over an area requiring multiple 20 sq cm increments of debridement

Documentation Requirements

To support CPT 97598 billing, documentation should include:

  • Patient identifiers and date of service
  • Wound diagnosis and clinical indication for debridement
  • Wound location and measurements
  • Total wound area debrided
  • Depth and level of tissue removed
  • Type and amount of devitalized tissue removed
  • Debridement technique used
  • Patient tolerance and response
  • Wound condition following the procedure
  • Provider signature and credentials

Documentation should clearly establish the additional wound area debrided and support the number of units reported.

Reimbursement and Coding Considerations

  • CPT 97598 is an add-on code for each additional 20 sq cm, or part thereof, of wound area debrided
  • It is generally reported with CPT 97597 for the initial 20 sq cm or less
  • The number of units should be supported by the documented total area actually debrided
  • Diagnosis coding should support the medical necessity of the wound care
  • Debridement codes are distinguished by the level of tissue removed, so documentation should accurately identify the deepest tissue debrided
  • Payer policies may establish specific requirements for wound care documentation, frequency, and medical necessity

Always verify payer-specific wound care and debridement billing requirements before submitting claims.

How OptiMantra Supports Wound Care Documentation

OptiMantra's integrated EMR and practice management platform streamlines documentation and billing for CPT 97598:

With OptiMantra, providers can:

  • Document wound assessments and debridement procedures using customizable charting templates and procedure note workflows
  • Record wound location, measurements, tissue characteristics, and treatment details
  • Track wound healing and changes in wound size over time
  • Link wound care procedures to diagnoses, treatment plans, and follow-up recommendations
  • Maintain organized wound care documentation that supports billing compliance and audit preparedness
  • Coordinate recurring wound care visits and patient follow-up from one centralized platform

By centralizing wound care documentation, OptiMantra helps practices improve efficiency, support compliant coding, and maintain comprehensive records throughout the patient's treatment course.

Try OptiMantra for free here!

Disclaimer: CPT® codes are maintained by the American Medical Association. This guide is for informational purposes only and does not replace official coding guidelines or payer policies.

Jessica Castro
Jessica Castro

Jessica is a Massachusetts-based LPN with 13+ years of experience in patient care, healthcare technology, and education. As the Implementation and Customer Success Manager at OptiMantra, she helps providers optimize EMR solutions for better workflows and patient outcomes. With a Bachelor's in Community Health and a Master's in Healthcare Innovation in progress, she is passionate about leveraging technology to improve care delivery. Through her writing, she shares insights on healthcare best practices, EHR optimization, and patient advocacy to support providers in delivering exceptional care.