Diab due to undrl cond w unsp diabetic rtnop w macular edema

This code signifies diabetes mellitus that is secondary to another underlying disease or condition, rather than being type 1 or type 2 diabetes. The patient also presents with diabetic retinopathy, which is unspecified in type, and has developed macular edema as a complication. This indicates vision-threatening damage to the retina due to the secondary diabetes.

Apply this code when documentation clearly states diabetes is secondary to another condition (e.g., cystic fibrosis, pancreatectomy, drug-induced) and specifies the presence of diabetic retinopathy with macular edema. The "unspecified" nature of the retinopathy means the specific type (e.g., proliferative, nonproliferative) is not documented. Ensure the underlying condition causing the diabetes is also coded.

• Always code the underlying condition causing the diabetes first, followed by this code.
• Do not use this code for Type 1 or Type 2 diabetes; those have their own specific codes for retinopathy with macular edema.
• If the type of diabetic retinopathy (e.g., proliferative, nonproliferative) is specified, a more precise code from the E08.31 category should be used instead.