CPT Code 17250: Chemical Cauterization of Granulation Tissue

What is chemical cauterization?

Chemical cauterization uses a caustic agent, most commonly silver nitrate or potassium hydroxide, applied directly to bladder or wound sites to destroy overgrown granulation tissue. It’s often used when granulation tissue interferes with normal healing in wounds or for management of benign or premalignant lesions. The procedure doesn’t require an excision and may be repeated on the same lesion until healing is achieved.

CPT code 17250 documentation requirements

Proper documentation is crucial for billing. Notes must support:

Description of wound location and granulation tissue

Clearly record the anatomical site, specifying the lesion or wound containing excessive granulation tissue interfering with healing.

Indication for cauterization

Explain the medical necessity: for example, a non-healing ulcer or excessive granulation tissue hindering wound closure.

Chemical agent used

Document which agent was applied (e.g., silver nitrate sticks or potassium hydroxide) and concentration details.

Clinical note on procedure, response, and post-care instructions

Include procedure details, observed tissue response (bleeding, blanching), and wound care plan to promote healing. Include in the medical record that this destruction procedure helps remove excess tissue and supports active wound care management.

CPT code 17250 billing guidelines

Proper billing for CPT code 17250 ensures accurate reimbursement and compliance with payer policies. Below are key considerations for when and how this code should be reported.

Report only for excessive or abnormal granulation tissue

CPT 17250 should only be billed when the provider performs chemical cauterization to treat abnormal or excessive granulation tissue. If the wound shows normal granulation and is progressing appropriately, this procedure code is not warranted.

Do not use for routine debridement

Standard wound cleaning or debridement procedures, even if they involve the removal of some granulation tissue, should not be reported using 17250. Instead, use appropriate excision or debridement codes (e.g., 11042–11047) when mechanical or surgical tissue removal is performed. CPT 17250 specifically denotes chemical destruction, not excision.

Bill once per session, not per lesion

CPT 17250 is billed per treatment session, regardless of how many lesions or sites are treated during the visit. If multiple sites of excessive granulation are treated with a chemical agent, the procedure is still reported as a single unit unless payer-specific policies allow otherwise. Do not report multiple units unless explicitly permitted.

Verify payer-specific policies

Some Medicaid programs and commercial insurers may require documentation of medical necessity, specific modifier use, or even pre-authorization for chemical cauterization. Always confirm with the payer’s billing guidelines before submitting a claim. Reimbursement rates may also vary depending on whether the service is performed by a physician or a qualified healthcare professional.

Use modifiers when appropriate

When CPT 17250 is performed on the same date as another procedure or an evaluation and management (E/M) service, it may require a modifier to distinguish the services for proper billing. See the next section below for specific examples, including Modifier 25 for significant E/M services and Modifier 59 for distinct procedural services.

Related CPT codes

Similar or related procedures include:

• 17000: Destruction (e.g., laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), premalignant lesions (e.g., actinic keratoses); first lesion.
• 17110: Destruction (e.g., laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement) of benign lesions other than skin tags or cutaneous vascular proliferative lesions; up to 14 lesions.
• 11042: Debridement, subcutaneous tissue (includes epidermis and dermis, if applicable); first 20 sq cm or less.
• 11055: Paring or cutting of benign hyperkeratotic lesion (eg, corn or callus); single lesion.