Endometriosis of pelvic peritoneum, unspecified

This code signifies the presence of endometrial tissue outside the uterus, specifically on the pelvic peritoneum, without further specification of the exact location or extent. This ectopic tissue responds to hormonal changes, leading to inflammation, pain, and potential adhesion formation within the pelvic cavity.

Assign this code when documentation confirms endometriosis affecting the pelvic peritoneum, but the specific site (e.g., anterior cul-de-sac, posterior cul-de-sac, broad ligament) is not detailed. This is often used when initial diagnostic laparoscopy identifies peritoneal implants without precise mapping.

• Always seek further specificity if available in the medical record to assign a more precise code within the N80.3 subcategory.
• Do not use this code if the endometriosis is documented as affecting other pelvic organs (e.g., ovary, fallopian tube, uterus).
• Code associated pain or infertility separately, as these are common manifestations of endometriosis.