ICD-10-CM diagnosis code
M89.739 Major osseous defect, unspecified forearm
- Billable
- Yes, a complete code (FY2026)
- Category
- M89 Other disorders of bone
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Other codes in M89
222 complete codes in this category.
- M89.719Major osseous defect, unspecified shoulder region
- M89.721Major osseous defect, right humerus
- M89.722Major osseous defect, left humerus
- M89.729Major osseous defect, unspecified humerus
- M89.731Major osseous defect, right forearm
- M89.732Major osseous defect, left forearm
- M89.739Major osseous defect, unspecified forearm
- M89.741Major osseous defect, right hand
- M89.742Major osseous defect, left hand
- M89.749Major osseous defect, unspecified hand
- M89.751Major osseous defect, right pelvic region and thigh
- M89.752Major osseous defect, left pelvic region and thigh
Documentation tips
- Make sure the note supports every element of the title, “Major osseous defect, unspecified forearm”: 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 M89.
The international WHO ICD-10 also has M89, 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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