Drug or chemical induced diabetes mellitus w oth skin ulcer

This code signifies diabetes mellitus that has been caused by a medication or chemical substance, and is complicated by the presence of a skin ulcer. This condition is distinct from Type 1 or Type 2 diabetes and results directly from an exogenous agent, leading to impaired glucose metabolism and subsequent skin breakdown.

Apply this code when documentation clearly states drug-induced diabetes and identifies a co-occurring skin ulcer. This typically arises in patients receiving certain medications (e.g., corticosteroids, some antipsychotics) who subsequently develop diabetes and present with non-healing skin lesions. Supporting documentation should include the specific drug/chemical implicated and a description of the ulcer.

• Always sequence the drug or chemical causing the diabetes (T36-T65 with 5th or 6th character 5) before this code.
• Do not use this code for ulcers related to Type 1 or Type 2 diabetes; those have specific codes.
• Ensure the documentation explicitly links the diabetes to a drug or chemical and not to other etiologies.