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M47.011

Billable

Anterior spinal artery compression syndromes, occipito-atlanto-axial region

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

What This Code Means

Compression of the anterior spinal artery in the upper neck region (where the skull meets the spine), causing reduced blood flow to the spinal cord.

Coding Tips

  • This is a serious condition requiring documentation of both the compression and the anterior spinal artery involvement
  • Verify imaging confirmation of anterior spinal artery compression; clinical symptoms may include weakness or paralysis

Code Hierarchy

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