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M89.79

Billable

Major osseous defect, multiple sites

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Significant loss or defects in bone structure affecting multiple different areas of the body simultaneously.

Coding Tips

  • •Document all affected sites in the clinical record to justify the multiple sites designation
  • •Consider if separate codes for each site would be more appropriate based on documentation specificity

Code Hierarchy

└M89Other disorders of bone└M89.7Major osseous defect└M89.79Major osseous defect, multiple sites
└M89.79Major osseous defect, multiple sites

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