L27: Dermatitis due to substances taken internally

Codes under L27 (Dermatitis due to substances taken internally). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
L27.0	Generalized skin eruption due to drugs and medicaments taken internally	✓
L27.1	Localized skin eruption due to drugs and medicaments taken internally	✓
L27.2	Dermatitis due to ingested food	✓
L27.8	Dermatitis due to other substances taken internally	✓
L27.9	Dermatitis due to unspecified substance taken internally	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

Code the diagnosis right