Ulcerative (chronic) proctitis with abscess

This code signifies a chronic inflammatory condition affecting the rectum, specifically ulcerative proctitis, which has progressed to include the formation of an abscess. This indicates a localized collection of pus within the rectal tissue, a complication of the underlying chronic inflammation.

Apply this code when documentation explicitly states ulcerative proctitis with an associated abscess. This typically occurs in patients with a history of inflammatory bowel disease (IBD) presenting with acute rectal pain, fever, and purulent discharge. Diagnostic confirmation often involves colonoscopy with biopsy and imaging studies.

• Ensure documentation clearly specifies "ulcerative" proctitis, not just proctitis, and the presence of an abscess.
• Do not use this code for proctitis without an abscess or for other forms of proctitis (e.g., radiation proctitis).
• Consider sequencing this code as a primary diagnosis if the abscess is the main reason for the encounter, or as a secondary diagnosis if the underlying ulcerative proctitis is the primary focus.