ICD-10-CM diagnosis code
M61.177 Myositis ossificans progressiva, right toe(s)
- Billable
- Yes, a complete code (FY2026)
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Other codes in M61
154 complete codes in this category.
- M61.171Myositis ossificans progressiva, right ankle
- M61.172Myositis ossificans progressiva, left ankle
- M61.173Myositis ossificans progressiva, unspecified ankle
- M61.174Myositis ossificans progressiva, right foot
- M61.175Myositis ossificans progressiva, left foot
- M61.176Myositis ossificans progressiva, unspecified foot
- M61.177Myositis ossificans progressiva, right toe(s)
- M61.178Myositis ossificans progressiva, left toe(s)
- M61.179Myositis ossificans progressiva, unspecified toe(s)
- M61.18Myositis ossificans progressiva, other site
- M61.19Myositis ossificans progressiva, multiple sites
- M61.20Paralytic calcification and ossification of muscle, unspecified site
Documentation tips
- Make sure the note supports every element of the title, “Myositis ossificans progressiva, right toe(s)”: 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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