M87.20
Billable codeOsteonecrosis due to previous trauma, unspecified bone
The ICD-10 code for osteonecrosis due to previous trauma, unspecified bone is M87.20.
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
- M87.21Osteonecrosis due to previous trauma, shouldernon-billable header
- M87.22Osteonecrosis due to previous trauma, humerusnon-billable header
- M87.23Osteonecrosis due to previous trauma of radius, ulna and carpusnon-billable header
- M87.24Osteonecrosis due to previous trauma, hand and fingersnon-billable header
- M87.25Osteonecrosis due to previous trauma, pelvis and femurnon-billable header
- M87.26Osteonecrosis due to previous trauma, tibia and fibulanon-billable header
- M87.27Osteonecrosis due to previous trauma, ankle, foot and toesnon-billable header
- M87.28Osteonecrosis due to previous trauma, other site
- M87.29Osteonecrosis due to previous trauma, multiple sites
- M87.20Osteonecrosis due to previous trauma, unspecified bone
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 73340Approximate match
Associated MS-DRGs
M87.20 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.