2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Skin And Subcutaneous Tissue 680-709 > Other Inflammatory Conditions Of Skin And Subcutaneous Tissue 690-698 > ICD-9-CM Diagnosis 693 Dermatitis due to substances taken internally 693 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 693.0 Dermatitis due to drugs and medicines taken internally Adverse cutaneous reactions caused by ingestion, parenteral use, or local application of a drug. These may assume various morphologic patterns and produce various types of lesions. 693.0 is a specific code that can be used to specify a diagnosis 693.0 contains 8 index entries ICD-9-CM Diagnosis 693.1 Dermatitis due to food taken internally 693.1 is a specific code that can be used to specify a diagnosis 693.1 contains 14 index entries ICD-9-CM Diagnosis 693.8 Dermatitis due to other specified substances taken internally 693.8 is a specific code that can be used to specify a diagnosis 693.8 contains 9 index entries ICD-9-CM Diagnosis 693.9 Dermatitis due to unspecified substance taken internally 693.9 is a specific code that can be used to specify a diagnosis 693.9 contains 2 index entries