Drug/chem diabetes w diabetic prph angiopath w gangrene

This code signifies diabetes mellitus that has been caused by a drug or chemical, specifically presenting with peripheral angiopathy and gangrene. The gangrene indicates severe tissue necrosis due to compromised blood flow in the extremities, a serious complication of the drug-induced diabetic state.

Apply this code when documentation clearly states diabetes mellitus is drug or chemical induced, and the patient also exhibits diabetic peripheral angiopathy complicated by gangrene. Supporting documentation would include physician notes detailing the etiology of diabetes, diagnostic findings of peripheral angiopathy, and clinical assessment of gangrene.

• Always identify the specific drug or chemical causing the diabetes, if known, and code it as an adverse effect (T36-T50 with 5th or 6th character 5).
• Ensure the documentation explicitly links the peripheral angiopathy and gangrene to the diabetic condition.
• Do not use this code for Type 1, Type 2, or other specified forms of diabetes; it is strictly for drug/chemical induced cases.