Ulcerative (chronic) rectosigmoiditis with oth complication

This code signifies chronic inflammation of the rectum and sigmoid colon, characteristic of ulcerative colitis, when accompanied by a complication other than hemorrhage, fistula, or abscess. This condition involves continuous mucosal inflammation, leading to symptoms like bloody diarrhea, abdominal pain, and tenesmus, with the specified additional complication.

Use this code for patients diagnosed with ulcerative rectosigmoiditis who present with a documented complication such as toxic megacolon, stricture, or perforation, but not those specifically coded elsewhere (e.g., hemorrhage). Documentation must clearly state "ulcerative (chronic) rectosigmoiditis" and specify the "other complication" to support its use.

• Ensure the documentation explicitly states "ulcerative" and "chronic" rectosigmoiditis.
• Verify the complication is not hemorrhage (K51.311), fistula (K51.312), or abscess (K51.313).
• Code any specific "other complication" separately if a more precise code exists and is supported by documentation.