Postdysenteric arthropathy, unspecified shoulder

This code describes an inflammatory joint condition affecting an unspecified shoulder, which develops as a reactive sequela following a dysenteric infection. It signifies a sterile arthritis, meaning the joint itself is not infected, but rather the immune system's response to a prior gastrointestinal infection is causing the joint inflammation.

Use this code when documentation clearly links shoulder arthropathy to a preceding episode of dysentery, and the specific shoulder (right or left) is not specified. This diagnosis requires a history of dysentery and clinical findings consistent with reactive arthritis in the shoulder.

• Ensure documentation explicitly states "postdysenteric" and specifies the shoulder as the affected joint.
• If the specific shoulder (right or left) is documented, use the more specific codes M02.111 or M02.112.
• Do not confuse with other forms of reactive arthropathy (e.g., postinfectious arthropathy due to other organisms) or septic arthritis.