ICD-10-CM 2027
ICD-10 code for herpetiformis dermatitis
From the official ICD-10-CM alphabetic index entry “Dermatitis (eczematous) › herpetiformis (bullous) (erythematous) (pustular) (vesicular)”. Page updated September 29, 2026.
About coding herpetiformis dermatitis
The ICD-10-CM code for herpetiformis dermatitis is L13.0 (Dermatitis herpetiformis). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L13.0.
Within L13 (other bullous disorders), L13.0 is specifically for dermatitis herpetiformis. Related codes cover Subcorneal pustular dermatitis (L13.1), other specified bullous disorders (L13.8) and bullous disorder, unspecified (L13.9).
Don't report L13.0 together with the conditions in its Excludes1 note: juvenile dermatitis herpetiformis (L12.2) and senile dermatitis herpetiformis (L12.0).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific herpetiformis dermatitis codes (official index)
Don't confuse with (Excludes1 for L13.0)
Common questions about herpetiformis dermatitis ICD-10 codes
What is the ICD-10 code for herpetiformis dermatitis?
- L13.0 — Dermatitis herpetiformis. More specific codes apply when the documentation supports them: L12.2, L12.0.
What is the ICD-10 code for juvenile herpetiformis dermatitis?
- L12.2 — Chronic bullous disease of childhood.
What is the ICD-10 code for senile herpetiformis dermatitis?
- L12.0 — Bullous pemphigoid.
Is L13.0 billable?
- Yes. L13.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L13.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L13.0 as a principal diagnosis.
Is L13.0 a CC or MCC?
- No. L13.0 is neither a CC nor an MCC under MS-DRG v44.0.