Charcot's arthropathy (tabetic)

This diagnosis code represents Charcot's arthropathy, specifically when it is a complication of syphilis. It describes a progressive degenerative joint disease characterized by joint destruction, deformity, and instability, resulting from neurological damage caused by tertiary syphilis. The condition often affects weight-bearing joints, leading to significant functional impairment.

Use this code when documentation clearly indicates Charcot's arthropathy and specifies its etiology as tabes dorsalis or neurosyphilis. Clinical scenarios include patients presenting with neuropathic joint destruction, particularly in the knees, ankles, or spine, with a confirmed history or current diagnosis of syphilis. Supporting documentation would include neurological findings consistent with tabes dorsalis, imaging showing joint destruction, and serological tests confirming syphilis.

• Ensure documentation explicitly links the Charcot's arthropathy to syphilis; otherwise, a non-syphilitic Charcot's code may be more appropriate.
• Always sequence this code after the underlying syphilis code (A52.19 for other specified symptomatic neurosyphilis, or A52.10 for unspecified symptomatic neurosyphilis if more specific detail is lacking).
• Do not confuse with other forms of Charcot's arthropathy not related to syphilis, such as those caused by diabetes or other neurological conditions.