Type 1 diab with mod nonp rtnop without macular edema, l eye

This code signifies a patient diagnosed with Type 1 diabetes who has developed moderate nonproliferative diabetic retinopathy in their left eye. This specific stage of retinopathy is characterized by microaneurysms, hemorrhages, and cotton wool spots without new vessel formation, and importantly, without any swelling of the macula.

Apply this code when documentation clearly indicates Type 1 diabetes and an ophthalmological examination confirms moderate nonproliferative diabetic retinopathy affecting only the left eye, with no evidence of macular edema. This is typically used for ongoing management and monitoring of diabetic eye disease.

• Always ensure the documentation specifies "Type 1" diabetes and the laterality (left eye) of the retinopathy.
• Distinguish carefully between nonproliferative and proliferative retinopathy, and the presence or absence of macular edema, as these significantly alter the code.
• Sequence this code after the primary diabetes code (E10.-) to accurately reflect the causal relationship.