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M99.01

Billable

Segmental and somatic dysfunction of cervical region

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

What This Code Means

A dysfunction of the joints and muscles in the neck region that restricts normal movement and alignment.

Coding Tips

  • Cervical dysfunction is frequently associated with headaches and upper extremity symptoms
  • Document whether the dysfunction is unilateral or bilateral for complete clinical documentation

Code Hierarchy

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