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L27 Dermatitis due to substances taken internally

ICD-10-CM category L27 sits in Chapter 12 (Diseases of the skin and subcutaneous tissue, L00-L99). It contains 5 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in L27

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

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