In simple words: This condition refers to a complication of type 2 diabetes where the body doesn't produce or use enough insulin effectively. This results in high blood sugar levels, leading to diabetic retinopathy, where blood vessels in the eye leak and swell, affecting vision.

Type 2 diabetes mellitus (DM) with unspecified diabetic retinopathy with macular edema refers to a complication of type 2 DM, a disease in which the body's production or utilization of insulin is insufficient, leading to high levels of blood glucose with subsequent unspecified diabetic retinopathy associated with leaking blood vessels in the retina causing macular edema (swelling behind the point in the retina with sharpest vision).

Example 1: A 60-year-old patient with a history of type 2 diabetes presents with blurred vision. Upon examination, they are diagnosed with unspecified diabetic retinopathy with macular edema., A patient with long-standing type 2 diabetes is found to have macular edema and unspecified diabetic retinopathy during a routine eye exam. The patient reports no vision changes., A 50-year-old with type 2 diabetes experiences sudden vision loss. Diagnostic tests reveal unspecified diabetic retinopathy with macular edema, requiring immediate intervention.

Documentation should include the type of diabetes, presence of retinopathy and macular edema, laterality (if applicable), and any associated symptoms. It's crucial to document the severity and specific type if known (e.g., nonproliferative, proliferative), as this affects code selection. Include details of ophthalmological findings and any treatments provided.