Deep endometriosis of bilateral ureters

This code signifies the presence of endometrial tissue deeply infiltrating both the left and right ureters. This condition can lead to ureteral obstruction, hydronephrosis, and impaired kidney function due to the ectopic endometrial growth. It represents a severe form of endometriosis affecting the urinary tract.

Apply this code when documentation explicitly states deep endometriosis affecting both ureters. This diagnosis is typically confirmed through imaging studies (e.g., MRI, CT scan) demonstrating ureteral involvement, or during surgical exploration with histological confirmation. Use when the laterality of involvement is specified as bilateral.

• Ensure documentation specifies "deep" involvement and "bilateral" ureters; avoid using for superficial or unilateral cases.
• Code any associated complications, such as hydronephrosis (N13.30-N13.39), separately.
• Differentiate from other forms of endometriosis affecting the urinary tract (e.g., bladder, other pelvic sites) by confirming ureteral involvement.