What Is CPT Code 97597? How and When to Use It for Wound Debridement Billing

If you bill wound care services, CPT code 97597 is one you'll see on claims every single week. It's the primary code for selective wound debridement and one of the most frequently denied codes in the specialty.

Getting it right matters. One undocumented field, one bundling error, or the wrong companion code can turn a clean claim into a 45-day appeals process. Many providers work with wound care billing experts to reduce denials and improve reimbursement accuracy.

What Is CPT Code 97597

The CPT 97597 code is used for selective debridement of an open wound. It covers the first 20 sq cm or less of total wound surface area treated during a session.

In practical terms, this means the provider removes nonviable or devitalized tissue from the wound while preserving healthy tissue as much as possible. Providers may use tools such as scissors, forceps, curettes, scalpels, or high-pressure water irrigation to remove nonviable tissue and support wound healing.

The CPT 97597 description generally includes:

• Selective debridement of an open wound

• Removal of devitalized epidermis, dermis, fibrin, exudate, debris, slough, or biofilm

• Wound assessment

• Topical application when performed

• Whirlpool use when performed

• Instructions for continued wound care

• Total wound surface area of 20 sq cm or less

Many wound care professionals search for the CPT code for wound debridement, and CPT 97597 is one of the most common results. But it should only be selected when the clinical note supports selective debridement.

A common example 

A diabetic foot ulcer with slough in the wound bed. If the provider selectively removes the slough using scissors, forceps, a curette, or another appropriate method, and the total debrided area is 20 sq cm or less, the 97597 CPT code may be appropriate. 

When Should You Use CPT 97597 

Use CPT code 97597 when selective debridement is performed on an open wound and the medical record clearly supports the need for treatment.

Diabetic Foot Ulcers

A provider may report CPT 97597 when a diabetic foot ulcer contains devitalized tissue that is delaying healing.

Example: Selective removal of slough or necrotic tissue from a diabetic foot ulcer measuring 20 sq cm or less.

Venous Leg Ulcers

Chronic venous ulcers often require periodic debridement to remove nonviable tissue and support wound healing.

Example: Selective debridement performed during a wound care visit for a non-healing venous leg ulcer.

Pressure Injuries

Pressure ulcers may qualify for the CPT code for debridement of wounds when selective tissue removal is medically necessary.

Example: Removing devitalized tissue from a pressure injury while preserving healthy surrounding tissue.

Traumatic Wounds

Some traumatic wounds develop fibrin, debris, or necrotic tissue that can slow the healing process.

Example: Selective debridement of a traumatic wound with visible nonviable tissue.

Post-Surgical Wounds

Certain post-surgical wounds may require selective debridement when superficial tissue breakdown occurs.

Example: Removal of devitalized tissue from a surgical wound that is not healing as expected.

Medicare frequency rule

Under 2026 CMS guidelines, CPT 97597 is reimbursable only once per seven days at a specific wound site unless significant clinical changes are documented. More frequent sessions require strong medical necessity documentation, including evidence of infection, worsening wound status, or comorbidities affecting healing. Commercial payers set their own frequency limits.

Practical example

A patient has a venous ulcer on the lower leg measuring 3 cm x 4 cm. The wound contains yellow slough and mild drainage. The provider performs sharp, selective debridement with forceps and scissors. The total area debrided is 12 sq cm.

In this case, the CPT code for the debridement of the wound may be CPT 97597 because the service involved selective debridement and the area was less than 20 sq cm.

Documentation Requirements for CPT Code 97597

Good documentation is essential when billing CPT code 97597. Following established wound care documentation requirements can help support medical necessity and reduce audit risk. Since payers frequently review wound care claims, the medical record should clearly support the service performed and the medical necessity for treatment.

The documentation should include:

• Exact wound location

• Wound measurements, including length, width, depth, and total area treated

• Description of the wound before treatment

• Type of tissue removed, such as slough, fibrin, biofilm, or necrotic tissue

• Debridement method and instruments used

• Depth of tissue debrided

• Clinical reason for performing the debridement

• Treatment is provided after the procedure

• Follow-up care instructions and provider signature

When reporting the CPT code for wound care, vague notes such as "wound cleaned" or "dressing changed" are usually not enough to support reimbursement. The record should clearly show that selective debridement was performed.

What Is Not Included in CPT Code 97597?

Although CPT code 97597 is one of the most commonly used wound care CPT codes, it does not apply to every wound treatment.

The code generally does not cover:

• Wounds larger than 20 sq cm without reporting CPT 97598 for the additional area

• Non-selective debridement procedures

• Surgical debridement involving subcutaneous tissue, muscle, or bone

• Routine post-operative wound care is included in the global period

• Dressing changes without active tissue removal

Choosing the correct CPT code for debridement of wound services depends on the type of debridement performed, the depth of tissue treated, and the total wound size documented in the medical record.

FAQ

What is CPT code 97597 used for?

CPT code 97597 is used for selective debridement of an open wound. It applies when a provider removes devitalized tissue to support healing, and the treated area is 20 sq cm or less. 

How often can 97597 be billed?

CPT 97597 is billed per treatment session. Frequency depends on medical necessity, wound progress, payer policies, and proper documentation supporting the need for repeated debridement. 

Does Medicare pay for 97597? 

Yes. Medicare generally covers CPT 97597 when selective debridement is medically necessary, and the documentation supports the condition being treated and the service performed. 

Can CPT 97597 be billed alone? 

Yes, CPT 97597 can be billed alone when selective debridement is performed. However, services already included in the code, such as routine dressings, should not be billed separately.