Deep endometriosis of left ovary

This code signifies the presence of deeply infiltrating endometrial tissue within the left ovary. This condition is characterized by endometrial-like glands and stroma extending more than 5mm beneath the ovarian surface, often causing significant pain and dysfunction.

Use this code when diagnostic imaging (e.g., MRI, transvaginal ultrasound) or surgical pathology confirms deep endometriosis specifically affecting the left ovary. Documentation should clearly indicate the laterality and depth of endometrial infiltration.

• Differentiate from superficial ovarian endometriosis (N80.10) or endometrioma (N80.11).
• Ensure documentation specifies "deep" involvement and the affected ovary (left).
• Consider sequencing with codes for associated symptoms (e.g., chronic pelvic pain, dyspareunia) or infertility if applicable.