Endometriosis of unspecified ureter, unspecified depth

This code signifies the presence of endometrial tissue abnormally located within the wall of a ureter, where the specific ureter (left or right) and the extent of tissue invasion are not documented. This ectopic tissue can cause obstruction, hydronephrosis, and pain, particularly during menstruation.

Assign this code when documentation confirms ureteral endometriosis but lacks specificity regarding the affected side or the depth of involvement within the ureteral wall. This is often used in initial diagnostic phases or when imaging/surgical reports are inconclusive on these details.

• Avoid using this code if the laterality (left or right ureter) is specified in the clinical documentation; instead, use a more specific code from the N80.A6- series.
• Do not use this code if the depth of invasion (e.g., superficial, deep) is clearly documented; look for codes that specify depth.
• Always review the entire medical record for further details that might allow for a more precise code assignment.