Type 2 diabetes mellitus w diabetic chronic kidney disease

This code signifies the presence of both type 2 diabetes mellitus and chronic kidney disease (CKD) where the CKD is a direct complication of the diabetes. It indicates a systemic impact of uncontrolled or long-standing type 2 diabetes on renal function.

Apply this code when documentation clearly states a diagnosis of type 2 diabetes and a co-occurring diagnosis of chronic kidney disease, explicitly linking the CKD as a diabetic complication. This is appropriate for patients with any stage of diabetic nephropathy.

• Always code the specific stage of chronic kidney disease (e.g., N18.3 for CKD Stage 3) in addition to this code.
• Ensure the physician documentation explicitly states the kidney disease is "diabetic" or "due to diabetes."
• Do not use this code if the CKD is unrelated to the patient's diabetes.