L13: Other bullous disorders
Codes under L13 (Other bullous disorders). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| L13.0 | Dermatitis herpetiformis | ✓ |
| L13.0 | Dermatitis herpetiformis | ✓ |
| L13.1 | Subcorneal pustular dermatitis | ✓ |
| L13.1 | Subcorneal pustular dermatitis | ✓ |
| L13.8 | Other specified bullous disorders | ✓ |
| L13.8 | Other specified bullous disorders | ✓ |
| L13.9 | Bullous disorder, unspecified | ✓ |
| L13.9 | Bullous disorder, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code L13?
L13 is an ICD-10-CM category covering Other bullous disorders. It contains 8 more specific diagnosis codes, 8 of which are billable.
Is L13 a billable code?
No — L13 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example L13.0 — Dermatitis herpetiformis). 8 of the 8 codes under L13 are billable.
What codes fall under L13?
L13 includes L13.0, L13.0, L13.1, L13.1, L13.8, plus 3 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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