ICD-10-CM diagnosis code
N80.A42 Superficial endometriosis of left ureter
- Billable
- Yes, a complete code (FY2026)
- Category
- N80 Endometriosis
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Other codes in N80
138 complete codes in this category.
- N80.8Other endometriosis
- N80.9Endometriosis, unspecified
- N80.A0Endometriosis of bladder, unspecified depth
- N80.A1Superficial endometriosis of bladder
- N80.A2Deep endometriosis of bladder
- N80.A41Superficial endometriosis of right ureter
- N80.A42Superficial endometriosis of left ureter
- N80.A43Superficial endometriosis of bilateral ureters
- N80.A49Superficial endometriosis of unspecified ureter
- N80.A51Deep endometriosis of right ureter
- N80.A52Deep endometriosis of left ureter
- N80.A53Deep endometriosis of bilateral ureters
Documentation tips
- Make sure the note supports every element of the title, “Superficial endometriosis of left ureter”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to N80.
The international WHO ICD-10 also has N80, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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