ICD-10-CM diagnosis code
M21.549 Acquired clubfoot, unspecified foot
- Billable
- Yes, a complete code (FY2026)
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Other codes in M21
124 complete codes in this category.
- M21.529Acquired clubhand, unspecified hand
- M21.531Acquired clawfoot, right foot
- M21.532Acquired clawfoot, left foot
- M21.539Acquired clawfoot, unspecified foot
- M21.541Acquired clubfoot, right foot
- M21.542Acquired clubfoot, left foot
- M21.549Acquired clubfoot, unspecified foot
- M21.611Bunion of right foot
- M21.612Bunion of left foot
- M21.619Bunion of unspecified foot
- M21.621Bunionette of right foot
- M21.622Bunionette of left foot
Documentation tips
- Make sure the note supports every element of the title, “Acquired clubfoot, unspecified foot”: 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 M21.
The international WHO ICD-10 also has M21, 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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