Charcot's joint, unspecified hand

This code identifies a neuropathic arthropathy affecting an unspecified hand, characterized by progressive joint destruction due to underlying nerve damage. It results from a loss of proprioception and pain sensation, leading to repetitive microtrauma and subsequent joint degeneration, dislocation, and deformity.

Assign this code when documentation clearly indicates Charcot's arthropathy affecting a hand, without specifying laterality. This typically occurs in patients with conditions like diabetes, syphilis, or syringomyelia, where nerve damage compromises joint integrity. Supporting documentation should detail the characteristic joint changes and the underlying neurological deficit.

• Ensure the documentation specifies "hand" and does not indicate a more precise location (e.g., wrist, finger) or laterality.
• Always code the underlying neurological condition (e.g., E11.40 for diabetic neuropathy) first, as it is the etiology of the Charcot's joint.
• Avoid using this code if a more specific site or laterality of the Charcot's joint in the hand is documented; look for codes within M14.64- that specify right, left, or bilateral.