Benign Skin Lesion Removal — CPB 0633 | AETNA Coverage Update

Aetna modified CPB 0633, its benign skin lesion removal coverage policy, effective October 8, 2025. Here's what billing teams need to know before submitting claims.

Aetna, a CVS Health company, updated Clinical Policy Bulletin CPB 0633 governing removal of benign skin lesions—a policy that touches over 100 CPT codes across dermatology, surgery, and urology. The update refines medical necessity criteria, adds two explicit experimental designations, and draws a sharper line between covered removal and cosmetic exclusion. If your practice bills CPT 11200–11201 for skin tags, CPT 11400–11446 for excision, or CPT 17000–17111 for destruction, this policy directly controls your reimbursement.

Quick-Reference Table

Aetna Benign Skin Lesion Removal Coverage Criteria and Medical Necessity Requirements 2025

The real issue with Aetna's benign skin lesion removal coverage policy is how thin the line is between covered and cosmetic. Most of these lesions are clinically unremarkable. That's exactly why documentation is the difference between payment and a claim denial.

Aetna covers removal of a specific list of lesions—acquired or small congenital nevi (moles under 1.5 cm), cutaneous and subcutaneous neurofibromas, dermatofibromas, dermatosis papulosa nigra, acrochordons (skin tags), pilomatrixomata, sebaceous cysts (pilar and epidermoid), seborrheic keratoses, and other benign skin lesions. Coverage also extends to needle hyfrecation for sebaceous hyperplasia. But coverage requires that at least one of seven specific criteria is documented.

Those seven criteria are:

The policy also defines clinical suspicion of malignancy using the ABCDE framework: Asymmetry, Border irregularity, Color variation, Diameter over 6mm (roughly the size of a pencil eraser), and Evolving size, shape, or color. Your documentation needs to tie back to at least one of these anchors if criterion three is what you're relying on.

This policy does not explicitly require prior authorization on its face, but Aetna's standard utilization management programs may apply prior authorization at the plan level. Check the specific plan before assuming claims will process without review—especially for larger excisions or multiple lesion removals in a single session.

Aetna Benign Skin Lesion Removal Exclusions and Non-Covered Indications

Aetna added two explicit experimental, investigational, or unproven designations in this update. These aren't edge cases—they're direct denials waiting to happen if your providers are using these approaches.

Ionized plasma jet therapy for removal of benign skin lesions, including dermatosis papulosa nigra, is now explicitly excluded. Aetna's position: effectiveness has not been established. If any of your providers are using plasma jet devices for skin lesion work on Aetna members, stop billing for it. Those claims will not pay.

Skin ultrasonography for pre-surgical evaluation of benign skin lesion dimensions and morphology is also excluded. The clinical rationale—measuring a lesion's depth and margins before excision—may sound reasonable, but Aetna doesn't consider it proven. Don't bill ultrasound as a standalone pre-op service for benign lesion removal on Aetna members and expect reimbursement.

On the cosmetic side, Aetna is direct: if none of the seven medical necessity criteria are met, removal of dermatofibromas, dermatosis papulosa nigra, pilomatrixoma, poikiloderma of Civatte (sun aging), sebaceous cysts, seborrheic keratoses, small nevi, and other benign skin lesions is classified as cosmetic. Needle hyfrecation for sebaceous hyperplasia also falls to cosmetic without a qualifying indication.

Poikiloderma of Civatte—a sun-aging condition presenting as redness and pigmentation on the neck—has no path to medical necessity coverage under this policy. That's a hard stop. Patients seeking cosmetic improvement should be counseled at scheduling, not at the claim.

Coverage Indications at a Glance

Aetna Benign Skin Lesion Removal Billing Guidelines and Action Items 2025

This policy is effective October 8, 2025. Here's what your billing team needs to do before claims go out the door.

If you're billing multiple specialties and aren't sure how this applies to your specific payer mix, talk to your compliance officer before October 8.

CPT, HCPCS, and ICD-10 Codes for Benign Skin Lesion Removal Under CPB 0633

Covered CPT Codes (When Selection Criteria Are Met)

The policy data confirms 112 total CPT codes are listed under CPB 0633. The 32 additional codes beyond those shown above cover further urology, gynecology, and other site-specific destruction codes. See the full policy at PayerPolicy CPB 0633 for the complete code list.

Key ICD-10-CM Diagnosis Codes

The policy lists 118 ICD-10-CM codes in total. The full set is available at the source policy link. The policy data provided includes 38 additional codes beyond the sample shown. Review the complete list at PayerPolicy CPB 0633 to confirm your specific diagnosis codes are covered.