Postdysenteric arthropathy, left ankle and foot

This code signifies inflammatory joint disease affecting the left ankle and foot that develops after an episode of dysentery. It is a reactive arthritis, meaning the joint inflammation is triggered by an infection elsewhere in the body, specifically the gastrointestinal tract.

Apply this code when documentation clearly indicates a diagnosis of reactive arthropathy of the left ankle and foot, with a direct causal link to a preceding dysenteric infection. This typically follows bacterial infections like Shigella, Salmonella, or Campylobacter.

• Ensure documentation specifies "postdysenteric" to differentiate from other forms of reactive arthritis.
• Verify the affected joint is explicitly the left ankle and foot; laterality is crucial.
• Consider sequencing an additional code for the underlying dysenteric infection if it is still active or relevant to the current encounter.