Superfic endometriosis of pelvic sidewall, unspecified side

This code describes the presence of endometrial-like tissue growing on the surface of the pelvic sidewall, without specifying whether it's on the right or left side. This condition can cause chronic pelvic pain, dysmenorrhea, and infertility. It is considered a superficial manifestation, meaning it does not deeply infiltrate the underlying tissues.

Use this code when documentation confirms superficial endometriosis affecting the pelvic sidewall, but the specific laterality (right or left) is not documented or is unknown. This typically occurs during laparoscopic visualization or biopsy where the exact side is not explicitly stated in the operative report or pathology findings.

• Always seek clarification from the provider if the laterality of the pelvic sidewall involvement is not specified.
• Distinguish between superficial and deep infiltrating endometriosis; this code is for superficial involvement only.
• Do not use this code if endometriosis is documented in other pelvic locations (e.g., ovary, uterus) without specific mention of the pelvic sidewall.