Postdysenteric arthropathy, right hand

This code describes an inflammatory joint condition affecting the right hand that develops as a reactive sequela to a prior enteric infection, such as bacterial dysentery. It is a form of reactive arthritis where the joint inflammation is triggered by an infection elsewhere in the body, specifically the gastrointestinal tract.

Use this code when documentation clearly indicates reactive arthropathy of the right hand following a confirmed or suspected dysenteric infection. The patient typically presents with acute, asymmetric oligoarthritis of the right hand joints, often accompanied by a history of recent diarrhea.

• Ensure documentation specifies "postdysenteric" and the affected joint is the "right hand."
• Do not confuse with other forms of reactive arthritis (e.g., post-streptococcal) or infectious arthritis directly caused by an organism in the joint.
• Code the underlying infectious disease (e.g., Shigellosis, Salmonellosis) as an additional diagnosis if still active or relevant to the current encounter.