ICD-10-CM diagnosis code
I70.631 Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of thigh
- Billable
- Yes, a complete code (FY2026)
- Category
- I70 Atherosclerosis
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Other codes in I70
246 complete codes in this category.
- I70.619Atherosclerosis of nonbiological bypass graft(s) of the extremities with intermittent claudication, unspecified extremity
- I70.621Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, right leg
- I70.622Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, left leg
- I70.623Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, bilateral legs
- I70.628Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, other extremity
- I70.629Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, unspecified extremity
- I70.631Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of thigh
- I70.632Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of calf
- I70.633Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of ankle
- I70.634Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of heel and midfoot
- I70.635Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of other part of foot
- I70.638Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of other part of lower leg
Documentation tips
- Make sure the note supports every element of the title, “Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of thigh”: 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 I70.
The international WHO ICD-10 also has I70, 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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