Diab with severe nonp rtnop without macular edema, left eye

This code signifies diabetes that has developed as a consequence of another underlying medical condition, presenting with severe nonproliferative diabetic retinopathy (NPDR) in the left eye. Importantly, there is no associated macular edema in the affected eye.

Use this code when documentation clearly indicates a secondary form of diabetes (e.g., due to pancreatitis, cystic fibrosis, or drug-induced) and an ophthalmologist's report confirms severe NPDR in the left eye without macular edema. This code is appropriate for patients whose diabetes is not type 1 or type 2.

• Always sequence the underlying condition causing the diabetes first.
• Ensure documentation specifies "severe" nonproliferative retinopathy and "without macular edema" for the left eye.
• Distinguish carefully from proliferative diabetic retinopathy or cases with macular edema, which have different codes.