M99.31
ICD-10-CMThis code signifies a narrowing of the bony spinal canal in the neck region, which can compress the spinal cord or nerve roots. This stenosis is due to an overgrowth or abnormal formation of bone (osseous tissue). Patients may present with myelopathy or radiculopathy symptoms.
Use this code when documentation explicitly states osseous stenosis of the cervical neural canal. This diagnosis is typically supported by imaging studies (e.g., MRI, CT) demonstrating bony encroachment on the spinal canal. It applies to cases where the primary cause of narrowing is bone, rather than soft tissue.
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