Type 2 diabetes mellitus with diabetic nephropathy

This code signifies a diagnosis of type 2 diabetes mellitus complicated by diabetic nephropathy, a progressive kidney disease resulting from long-term diabetes. It indicates the presence of kidney damage directly attributable to the patient's type 2 diabetes.

This code is appropriate when a patient with type 2 diabetes exhibits clinical evidence of diabetic nephropathy, such as proteinuria, declining glomerular filtration rate (GFR), or other signs of kidney dysfunction. Documentation should clearly link the kidney disease to the patient's diabetes.

• Always code the underlying type 2 diabetes first, followed by this code for the manifestation.
• Ensure documentation specifies "diabetic nephropathy" and not just general kidney disease, to support the causal link.
• Do not use this code if the kidney disease is determined to be from a cause other than diabetes.