Drug/chem diab with severe nonp rtnop with mclr edema, l eye

This code describes a form of diabetes mellitus caused by a drug or chemical, specifically presenting with severe nonproliferative diabetic retinopathy affecting the macula of the left eye. This indicates significant retinal damage, including microaneurysms, hemorrhages, and venous beading, with associated fluid accumulation in the central vision area.

Use this code when documentation clearly states drug or chemical-induced diabetes and specifies severe nonproliferative diabetic retinopathy with macular edema in the left eye. This diagnosis requires a confirmed causal link between medication/chemical exposure and the onset of diabetes.

• Ensure documentation explicitly states "drug or chemical induced" diabetes, not Type 1, Type 2, or gestational.
• Verify the laterality (left eye) and the specific severity of retinopathy (severe nonproliferative) and the presence of macular edema.
• Always sequence the drug or chemical causing the diabetes as an adverse effect (T36-T65 with a 5th or 6th character of 5).