ICD-10-CM diagnosis code
M87.834 Other osteonecrosis of right ulna
- Billable
- Yes, a complete code (FY2026)
- Category
- M87 Osteonecrosis
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Other codes in M87
217 complete codes in this category.
- M87.821Other osteonecrosis, right humerus
- M87.822Other osteonecrosis, left humerus
- M87.829Other osteonecrosis, unspecified humerus
- M87.831Other osteonecrosis of right radius
- M87.832Other osteonecrosis of left radius
- M87.833Other osteonecrosis of unspecified radius
- M87.834Other osteonecrosis of right ulna
- M87.835Other osteonecrosis of left ulna
- M87.836Other osteonecrosis of unspecified ulna
- M87.837Other osteonecrosis of right carpus
- M87.838Other osteonecrosis of left carpus
- M87.839Other osteonecrosis of unspecified carpus
Documentation tips
- Make sure the note supports every element of the title, “Other osteonecrosis of right ulna”: 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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