Other specified diabetes mellitus with diabetic nephropathy

This code signifies a form of diabetes mellitus that doesn't fit into the typical Type 1 or Type 2 classifications, and is complicated by kidney disease specifically caused by diabetes. It indicates the presence of both the underlying "other specified" diabetes and its renal manifestation.

Apply this code when documentation clearly identifies a patient with diabetes mellitus that is not Type 1, Type 2, or gestational, and also explicitly states the presence of diabetic nephropathy. Examples include diabetes due to genetic defects of beta-cell function or postpancreatectomy diabetes, with associated kidney damage. Physician documentation must specify both the type of diabetes and the nephropathy.

• Always code the underlying "other specified" diabetes first, followed by the diabetic nephropathy.
• Ensure documentation differentiates "other specified" diabetes from Type 1 (E10.-) or Type 2 (E11.-) diabetes.
• Do not use this code if the nephropathy is not explicitly linked to the diabetes or if the diabetes type is unspecified.