ICD-10-CM diagnosis code
M87.346 Other secondary osteonecrosis, unspecified finger(s)
- Billable
- Yes, a complete code (FY2026)
- Category
- M87 Osteonecrosis
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Other codes in M87
217 complete codes in this category.
- M87.339Other secondary osteonecrosis of unspecified carpus
- M87.341Other secondary osteonecrosis, right hand
- M87.342Other secondary osteonecrosis, left hand
- M87.343Other secondary osteonecrosis, unspecified hand
- M87.344Other secondary osteonecrosis, right finger(s)
- M87.345Other secondary osteonecrosis, left finger(s)
- M87.346Other secondary osteonecrosis, unspecified finger(s)
- M87.350Other secondary osteonecrosis, pelvis
- M87.351Other secondary osteonecrosis, right femur
- M87.352Other secondary osteonecrosis, left femur
- M87.353Other secondary osteonecrosis, unspecified femur
- M87.361Other secondary osteonecrosis, right tibia
Documentation tips
- Make sure the note supports every element of the title, “Other secondary osteonecrosis, unspecified finger(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 M87.
The international WHO ICD-10 also has M87, 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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