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 | ✓ |
| L27.0 | Generalized skin eruption due to drugs and medicaments taken internally | ✓ |
| L27.1 | Localized 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 | ✓ |
| L27.2 | Dermatitis due to ingested food | ✓ |
| L27.8 | Dermatitis due to other substances taken internally | ✓ |
| L27.8 | Dermatitis due to other substances taken internally | ✓ |
| L27.9 | Dermatitis due to unspecified substance taken internally | ✓ |
| L27.9 | Dermatitis due to unspecified substance taken internally | ✓ |
Frequently asked questions
What is ICD-10-CM code L27?
L27 is an ICD-10-CM category covering Dermatitis due to substances taken internally. It contains 10 more specific diagnosis codes, 10 of which are billable.
Is L27 a billable code?
No — L27 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 L27.0 — Generalized skin eruption due to drugs and medicaments taken internally). 10 of the 10 codes under L27 are billable.
What codes fall under L27?
L27 includes L27.0, L27.0, L27.1, L27.1, L27.2, plus 5 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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