ICD-10-CM > I00-I99 > I30-I5A > I42 > I42.7 I42.7 Cardiomyopathy due to drug and external agent Billable/Specific Copy Code Copy Description Code First poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4) Use Additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)