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M99.31

Billable

Osseous stenosis of neural canal of cervical region

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

What This Code Means

Bone overgrowth in the neck spine that narrows the nerve passage, potentially causing neck pain, arm pain, or neurological symptoms.

Coding Tips

  • •Document the specific cervical vertebral level (C1-C7) if available for clinical precision
  • •Distinguish from M99.21 (subluxation stenosis) which involves partial dislocation rather than bone overgrowth

Code Hierarchy

└M99Biomechanical lesions, not elsewhere classified└M99.3Osseous stenosis of neural canal└M99.31Osseous stenosis of neural canal of cervical region
└M99.31Osseous stenosis of neural canal of cervical region

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