Diabetes due to undrl cond w diabetic neuropathic arthrop

This code signifies a form of diabetes that arises from an underlying medical condition (e.g., cystic fibrosis, pancreatitis, drug-induced) and is complicated by Charcot neuroarthropathy. This severe joint degeneration, often affecting the foot and ankle, results from nerve damage due to the diabetes.

Apply this code when documentation clearly states diabetes mellitus due to a secondary cause, and the patient presents with diabetic neuropathic arthropathy. Supporting documentation should identify the specific underlying condition causing the diabetes and describe the characteristic joint destruction of Charcot foot.

• Always sequence the underlying condition causing the diabetes first, followed by this code.
• Do not use this code for Type 1 or Type 2 diabetes with neuropathic arthropathy; use the appropriate E10 or E11 codes instead.
• Ensure the medical record explicitly links the neuropathic arthropathy to the diabetes due to the underlying condition.