Deep endometriosis of right fallopian tube

This code signifies the presence of endometrial-like tissue deeply infiltrating the muscular wall or serosa of the right fallopian tube. This condition is characterized by the ectopic growth of endometrial glands and stroma, leading to inflammation, scarring, and potential obstruction of the fallopian tube.

Use this code when documentation explicitly states deep endometriosis affecting the right fallopian tube, often confirmed by surgical pathology or advanced imaging. This code is appropriate for patients presenting with symptoms such as pelvic pain, dyspareunia, or infertility, where the right fallopian tube is identified as the site of deep endometriotic implants.

• Differentiate from superficial endometriosis of the fallopian tube (N80.21-) by ensuring documentation specifies "deep" involvement.
• Always confirm laterality (right vs. left) as separate codes exist for each.
• Consider sequencing this code after a primary diagnosis for chronic pelvic pain or infertility if the endometriosis is the underlying cause.