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M43.3

Billable

Recurrent atlantoaxial dislocation with myelopathy

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

What This Code Means

A condition where the top two vertebrae in the neck (atlantoaxial joint) repeatedly dislocate and cause spinal cord compression with neurological symptoms.

Coding Tips

  • •The presence of myelopathy (spinal cord damage) is a key distinguishing feature; document neurological symptoms such as weakness or numbness
  • •This is a recurrent condition, so verify documentation indicates multiple episodes or chronic instability

Code Hierarchy

└M43Other deforming dorsopathies└M43.3Recurrent atlantoaxial dislocation with myelopathy
└M43.3Recurrent atlantoaxial dislocation with myelopathy

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