L27Header code — not billable

Dermatitis due to substances taken internally

Chapter
12. Diseases of the skin and subcutaneous tissue
Category
L27
Effective date
October 1, 2026

Related codes in category L27

L27.0Gen skin eruption due to drugs and meds taken internallyYesL27.1Loc skin eruption due to drugs and meds taken internallyYesL27.2Dermatitis due to ingested foodYesL27.8Dermatitis due to other substances taken internallyYesL27.9Dermatitis due to unspecified substance taken internallyYes

Frequently asked questions

What is ICD-10 code L27?

L27 is an ICD-10-CM diagnosis code for Dermatitis due to substances taken internally.

Is L27 a billable code?

No. L27 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is L27 in?

L27 falls under Chapter 12: Diseases of the skin and subcutaneous tissue.

When did L27 become effective?

L27 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to L27?

L27 belongs to category L27, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.