L12.31 Epidermolysis bullosa due to drug

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Use additional code

• code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Applies from L12 Pemphigoid

Excludes1 (never code together)

• herpes gestationis (O26.4-)
• impetigo herpetiformis (L40.1)

Applies from L12.3 Acquired epidermolysis bullosa

Excludes1 (never code together)

• epidermolysis bullosa (congenital) (Q81.-)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 162 — Severe Skin Burn or Condition
• ESRD V24: HCC 162

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 695.15 Toxic epidermal necrolysis (approximate)

Diagnosis Index entries for L12.31

• Epidermolysis › bullosa (congenital) › acquired › drug-induced

Nearby codes

• L12.0 Bullous pemphigoid
• L12.1 Cicatricial pemphigoid
• L12.2 Chronic bullous disease of childhood
• L12.3 Acquired epidermolysis bullosa
• L12.30 Acquired epidermolysis bullosa, unspecified
• L12.31 Epidermolysis bullosa due to drug (this code)
• L12.35 Other acquired epidermolysis bullosa
• L12.8 Other pemphigoid
• L12.9 Pemphigoid, unspecified