Diab with prolif diabetic rtnop with macular edema, left eye

This code signifies diabetes mellitus that has developed as a consequence of another underlying medical condition, rather than being type 1 or type 2 diabetes. Specifically, it indicates the presence of proliferative diabetic retinopathy, a severe form of retinal damage, complicated by macular edema affecting the left eye.

Use this code when documentation clearly states diabetes is secondary to another condition (e.g., pancreatitis, cystic fibrosis, drug-induced) and the patient presents with proliferative diabetic retinopathy and macular edema in the left eye. Supporting documentation should include a definitive diagnosis of the underlying condition causing the diabetes and ophthalmological findings confirming the specific retinopathy and edema.

• Always sequence the underlying condition causing the diabetes first, followed by this code.
• Ensure documentation specifies "proliferative" retinopathy and "macular edema" in the "left eye" to use this exact code.
• Distinguish from other diabetic retinopathy codes that do not specify an underlying cause for the diabetes or lack the specific laterality/complications.