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M43.11

Billable

Spondylolisthesis, occipito-atlanto-axial region

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

What This Code Means

Forward slippage of the upper neck vertebrae where the skull connects to the spine (occipito-atlanto-axial region).

Coding Tips

  • This is a rare and serious location for spondylolisthesis; verify documentation carefully
  • May be associated with neurological symptoms due to proximity to brainstem and upper cervical nerves

Code Hierarchy

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