Drug/chem diabetes mellitus w diabetic cataract

This code signifies diabetes mellitus that has been caused by a drug or chemical agent, specifically when the patient has also developed a diabetic cataract. It indicates a direct causal link between medication or chemical exposure and the onset of diabetes, further complicated by ocular involvement.

Use this code when documentation clearly states that diabetes mellitus is drug or chemical induced and a diabetic cataract is present. This typically occurs in patients with a history of corticosteroid use, certain antipsychotics, or other diabetogenic substances. Supporting documentation should include physician notes detailing the drug/chemical etiology of the diabetes and ophthalmology reports confirming the diabetic cataract.

• Always sequence the drug/chemical induced diabetes code first, followed by the adverse effect code for the specific drug or chemical.
• Do not confuse this with type 1 or type 2 diabetes with cataracts; the etiology must be drug or chemical induced.
• Ensure the documentation explicitly links the cataract to the diabetic condition, not just a co-occurring age-related cataract.