Drug or chemical induced diabetes mellitus w/o complications

This code signifies diabetes mellitus that has developed as a direct consequence of drug therapy or exposure to certain chemicals, where no specific complications of diabetes are documented. It represents a secondary form of diabetes, distinct from Type 1 or Type 2, caused by an exogenous agent.

Apply this code when documentation clearly states that diabetes is drug-induced or chemically-induced, and there are no associated complications such as neuropathy, nephropathy, or retinopathy. This is appropriate when medications like corticosteroids, certain antipsychotics, or immunosuppressants are identified as the causative agent.

• Always sequence the drug or chemical causing the diabetes as an additional code (T36-T65) to fully explain the etiology.
• Do not use this code if the patient has pre-existing Type 1 or Type 2 diabetes that is merely exacerbated by medication; instead, code the underlying diabetes type.
• If complications are present, use the appropriate E09.x subcategory that specifies the complication (e.g., E09.22 for drug-induced diabetes with diabetic chronic kidney disease).