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

This code signifies diabetes mellitus that has been caused by a drug or chemical, specifically presenting with severe nonproliferative diabetic retinopathy in the left eye, without any associated macular edema. This indicates a significant level of retinal damage due to the drug-induced diabetes, but without fluid accumulation in the macula.

Use this code when documentation clearly states a diagnosis of drug or chemical-induced diabetes and specifies severe nonproliferative diabetic retinopathy affecting the left eye, with explicit confirmation that macular edema is absent. This code is appropriate for patients whose diabetes etiology is directly linked to medication or chemical exposure.

• Always verify the laterality (left eye) and the absence of macular edema.
• Ensure the documentation explicitly links the diabetes to a drug or chemical cause.
• Distinguish carefully from other types of diabetes (e.g., Type 1, Type 2) and other stages of retinopathy.