M89.70
Billable codeMajor osseous defect, unspecified site
The ICD-10 code for major osseous defect, unspecified site is M89.70.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M89.71Major osseous defect, shoulder regionnon-billable header
- M89.72Major osseous defect, humerusnon-billable header
- M89.73Major osseous defect, forearmnon-billable header
- M89.74Major osseous defect, handnon-billable header
- M89.75Major osseous defect, pelvic region and thighnon-billable header
- M89.76Major osseous defect, lower legnon-billable header
- M89.77Major osseous defect, ankle and footnon-billable header
- M89.78Major osseous defect, other site
- M89.79Major osseous defect, multiple sites
- M89.70Major osseous defect, unspecified site
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7313Approximate match
Associated MS-DRGs
M89.70 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.