Endometriosis of left ureter, unspecified depth

This code signifies the presence of endometrial tissue abnormally located within the left ureter, without specifying the extent or depth of its infiltration into the ureteral wall. This condition can lead to ureteral obstruction, hydronephrosis, and flank pain. It represents a specific anatomical manifestation of endometriosis.

Use this code when documentation confirms endometriosis affecting the left ureter, but the physician's notes do not specify whether the involvement is superficial, deep, or transmural. This diagnosis is typically made via imaging (e.g., MRI, CT) or direct visualization during surgery (e.g., laparoscopy, ureteroscopy) with biopsy confirmation.

• Ensure the laterality (left ureter) is clearly documented.
• Avoid using this code if the depth of ureteral involvement (e.g., superficial, deep) is specified; more specific codes exist.
• Always sequence this code after the primary diagnosis if the endometriosis is a manifestation or complication of another condition.