Question: A pathology report from a peritoneal biopsy indicates the patient has "endometriosis and endosalpingiosis." What is endosalpingiosis and what diagnosis code should I use for it? Answer: Patients with endosalpingiosis have tissue resembling that which lines the inside of the fallopian tubes in other areas of their body. Most frequently, these other areas are the outside of the fallopian tubes, ovaries or uterus. Occasionally, physicians may find endosalpingiosis on the surface of the bowel or bladder or deeper in the uterine wall.
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For this condition, you should consider 620.8 (Other noninflammatory disorders of ovary, fallopian tube, and broad ligament). Another option would be to report only the endometriosis (617.x).