Endometriosis of intestine, unspecified

This code signifies the presence of endometrial tissue abnormally located within the intestinal wall, without further specification of the exact intestinal segment involved. This ectopic tissue behaves similarly to uterine endometrium, responding to hormonal cycles and potentially causing inflammation, pain, and bleeding within the bowel.

Use this code when documentation confirms endometriosis affecting any part of the intestine, but the specific site (e.g., small intestine, large intestine, rectum) is not identified. This diagnosis is often made based on imaging, endoscopy with biopsy, or surgical findings.

• Always seek clarification from the provider if the specific intestinal segment is documented, as more precise codes exist (e.g., N80.51-N80.59).
• Code any associated symptoms (e.g., abdominal pain, constipation, diarrhea) separately.
• Do not use this code if the documentation specifies endometriosis of the peritoneum or other pelvic organs, even if adjacent to the intestine.