Ulcerative (chronic) rectosigmoiditis w intestinal obst

This code signifies a chronic inflammatory condition affecting the rectum and sigmoid colon, characterized by ulcerations and accompanied by a blockage in the intestinal tract. It represents a specific complication of ulcerative colitis localized to the rectosigmoid region.

Apply this code when documentation clearly indicates ulcerative rectosigmoiditis and an associated intestinal obstruction. This diagnosis requires physician documentation of both the chronic inflammatory bowel disease and the obstructive complication.

• Ensure physician documentation explicitly states "ulcerative" rectosigmoiditis, not just "rectosigmoiditis."
• Verify the presence and nature of the intestinal obstruction; do not assume obstruction if not clearly documented.
• Consider sequencing this code after any underlying cause of the obstruction if applicable and documented.