Superficial endometriosis of the left pelvic sidewall

This code describes the presence of endometrial-like tissue growing superficially on the left pelvic sidewall, outside of the uterus. This ectopic tissue responds to hormonal changes, leading to inflammation and pain. It is a specific manifestation of endometriosis affecting a particular anatomical location.

Use this code for patients diagnosed with endometriosis confirmed to be superficial and located on the left pelvic sidewall. Documentation should clearly specify the laterality and depth (superficial vs. deep infiltrating) of the endometrial implants. This code is appropriate when surgical findings or imaging definitively identify this specific site.

• Ensure documentation specifies "superficial" and "left pelvic sidewall" to support this precise code.
• Do not use this code for deep infiltrating endometriosis; separate codes exist for those presentations.
• Consider sequencing this code with codes for associated symptoms (e.g., chronic pelvic pain) or other endometriosis sites if present.