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M48.11

Billable

Ankylosing hyperostosis [Forestier], occipito-atlanto-axial region

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

What This Code Means

Abnormal bone growth at the base of the skull and upper neck area that can limit head movement and cause neck stiffness.

Coding Tips

  • •This code specifies the occipito-atlanto-axial region; ensure documentation clearly identifies this location
  • •Watch for associated cervical myelopathy or radiculopathy that may require additional coding

Code Hierarchy

└M48Other spondylopathies└M48.1Ankylosing hyperostosis [Forestier]└M48.11Ankylosing hyperostosis [Forestier], occipito-atlanto-axial region
└M48.11Ankylosing hyperostosis [Forestier], occipito-atlanto-axial region

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