L27 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Dermatitis due to substances taken internally.
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Allergy NOS (T78.40)
Adverse food reaction, except dermatitis (T78.0-T78.1)
Contact dermatitis (L23-L25)
Drug photoallergic response (L56.1)
Drug phototoxic response (L56.0)
Urticaria (L50.-)
Generalized skin eruption due to drugs and medicaments taken internally
Localized skin eruption due to drugs and medicaments taken internally
Dermatitis due to ingested food
Dermatitis due to other substances taken internally
Dermatitis due to unspecified substance taken internally
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