ICD-10 L13.0
Billable / SpecificDermatitis herpetiformis
About ICD-10-CM L13.0
ICD-10-CM code L13.0 represents Dermatitis herpetiformis. This is a billable/specific code in the Skin and Subcutaneous Tissue chapter (block L13). The 2026 edition of ICD-10-CM L13.0 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under L13.0. Per CMS ICD-10-CM Tabular 2026.
- Duhring's disease
- Hydroa herpetiformis
Type 1 Excludes
Pure excludes, these codes can never be coded together with L13.0. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- juvenile dermatitis herpetiformis (L12.2)
- senile dermatitis herpetiformis (L12.0)
Medicare LCD Coverage for L13.0
Local Coverage Determinations (LCDs) from CMS MACs that list L13.0 as a covered diagnosis.
Showing top 10 of 29 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing L13.0.
3 Medicare
CPT Codes Commonly Billed with L13.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 11102 Tangential skin biopsy — uncertain neoplasm skin, actinic keratosis, melanocytic nevi, skin cancer, melanoma, psoriasis, discoid lupus, skin disorder, rash, seborrheic keratosis, benign neoplasm, dermatitis, prurigo, dermatitis herpetiformis Dermatology
- 11104 Punch biopsy skin — uncertain skin neoplasm, skin cancer, melanoma, nevi, psoriasis, lupus, connective tissue disorder, pemphigus, bullous pemphigoid Dermatology
Convert L13.0 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| L13.0 | 6940 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To L13.0
Other codes in section L10-L14 (Bullous disorders).
ICD-10 L13.0, Billing FAQ
Is ICD-10 code L13.0 billable? +
Yes, L13.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to L13.0? +
ICD-10 L13.0 includes: Duhring's disease; Hydroa herpetiformis.
What codes are Type 1 Excludes for L13.0? +
Type 1 Excludes (never code together with L13.0): juvenile dermatitis herpetiformis (L12.2); senile dermatitis herpetiformis (L12.0)
What CPT codes are commonly billed with L13.0? +
Procedures frequently paired with L13.0 include: 11102, 11104.
What ICD-9 codes does L13.0 map to? +
Per CMS GEMs, L13.0 maps to ICD-9 codes: 6940. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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