ICD-10-CM diagnosis code
I80.10 Phlebitis and thrombophlebitis of unspecified femoral vein
- Billable
- Yes, a complete code (FY2026)
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Other codes in I80
39 complete codes in this category.
- I80.00Phlebitis and thrombophlebitis of superficial vessels of unspecified lower extremity
- I80.01Phlebitis and thrombophlebitis of superficial vessels of right lower extremity
- I80.02Phlebitis and thrombophlebitis of superficial vessels of left lower extremity
- I80.03Phlebitis and thrombophlebitis of superficial vessels of lower extremities, bilateral
- I80.10Phlebitis and thrombophlebitis of unspecified femoral vein
- I80.11Phlebitis and thrombophlebitis of right femoral vein
- I80.12Phlebitis and thrombophlebitis of left femoral vein
- I80.13Phlebitis and thrombophlebitis of femoral vein, bilateral
- I80.201Phlebitis and thrombophlebitis of unspecified deep vessels of right lower extremity
- I80.202Phlebitis and thrombophlebitis of unspecified deep vessels of left lower extremity
- I80.203Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremities, bilateral
- I80.209Phlebitis and thrombophlebitis of unspecified deep vessels of unspecified lower extremity
Documentation tips
- Make sure the note supports every element of the title, “Phlebitis and thrombophlebitis of unspecified femoral vein”: 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 I80.
The international WHO ICD-10 also has I80, 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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