ICD-10-CM > L00-L99 > L20-L30 > L23 > L23.3 L23.3 Allergic contact dermatitis due to drugs in contact with skin Billable/Specific Copy Code Copy Description Use Additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) Type 2 Excludes dermatitis due to ingested drugs and medicaments (L27.0-L27.1)