Deep endometriosis of other parts of the colon

This code signifies the presence of deep endometriosis affecting parts of the colon other than the rectosigmoid junction or rectum. It indicates endometrial-like tissue implants that have infiltrated deeply into the bowel wall, potentially causing significant symptoms such as abdominal pain, bowel dysfunction, and bleeding.

Use this code when diagnostic imaging (e.g., MRI, colonoscopy with biopsy) or surgical findings confirm deep infiltration of endometrial implants into the colon, excluding the rectosigmoid and rectum. Documentation should clearly specify the affected colonic segment (e.g., transverse colon, descending colon, ascending colon, cecum) and the depth of invasion.

• Differentiate from superficial endometriosis of the colon, which would be coded differently.
• Ensure the documentation specifies "deep" involvement and the exact colonic location to avoid miscoding.
• Consider sequencing this code after any primary diagnosis related to the patient's presenting symptoms, if applicable.