693 Dermatitis due to substances taken internally 
693.0 Dermatitis due to drugs and medicines taken internally convert 693.0 to ICD-10-CM 693.1 Dermatitis due to food taken internally convert 693.1 to ICD-10-CM 693.8 Dermatitis due to other specified substances taken internally convert 693.8 to ICD-10-CM
693.9 Dermatitis due to unspecified substance taken internally convert 693.9 to ICD-10-CM