L13.9 Bullous disorder, unspecified

Billable ICD-10-CM code, FY2026.

Risk adjustment (HCC)

• RxHCC V08: HCC 314 — Pemphigus, Pemphigoid, and Other Bullous Skin Disorders

MS-DRG index

Defines the logic of DRG(s) 595-596 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 694.9 Unspecified bullous dermatoses

Diagnosis Index entries for L13.9

• Dermatitis (eczematous) › bullous, bullosa
• Dermatosis › bullous
• Disease, diseased › bullous

Nearby codes

• L13 Other bullous disorders
• L13.0 Dermatitis herpetiformis
• L13.1 Subcorneal pustular dermatitis
• L13.8 Other specified bullous disorders
• L13.9 Bullous disorder, unspecified (this code)