ICD-10-CM diagnosis code
M61.279 Paralytic calcification and ossification of muscle, unspecified ankle and foot
- Billable
- Yes, a complete code (FY2026)
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Other codes in M61
154 complete codes in this category.
- M61.259Paralytic calcification and ossification of muscle, unspecified thigh
- M61.261Paralytic calcification and ossification of muscle, right lower leg
- M61.262Paralytic calcification and ossification of muscle, left lower leg
- M61.269Paralytic calcification and ossification of muscle, unspecified lower leg
- M61.271Paralytic calcification and ossification of muscle, right ankle and foot
- M61.272Paralytic calcification and ossification of muscle, left ankle and foot
- M61.279Paralytic calcification and ossification of muscle, unspecified ankle and foot
- M61.28Paralytic calcification and ossification of muscle, other site
- M61.29Paralytic calcification and ossification of muscle, multiple sites
- M61.30Calcification and ossification of muscles associated with burns, unspecified site
- M61.311Calcification and ossification of muscles associated with burns, right shoulder
- M61.312Calcification and ossification of muscles associated with burns, left shoulder
Documentation tips
- Make sure the note supports every element of the title, “Paralytic calcification and ossification of muscle, unspecified ankle and 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 M61.
The international WHO ICD-10 also has M61, 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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