Enteropathic arthropathies, right knee

This code signifies inflammatory joint disease affecting the right knee, specifically associated with an underlying inflammatory bowel disease (IBD) such as Crohn's disease or ulcerative colitis. It represents a reactive arthritis where gastrointestinal inflammation triggers musculoskeletal symptoms.

Assign this code when documentation clearly indicates enteropathic arthropathy affecting the right knee. This typically occurs in patients with a confirmed diagnosis of IBD who present with symptoms like pain, swelling, and stiffness in the right knee, and where other causes of arthritis have been ruled out.

• Ensure documentation specifies "right knee" as the affected joint; laterality is crucial for accurate coding.
• Always code the underlying inflammatory bowel disease first, followed by this code for the manifestation.
• Distinguish from other forms of inflammatory arthritis (e.g., rheumatoid arthritis, psoriatic arthritis) if the etiology is not enteropathic.