Intervertebral disc stenosis of neural canal of rib cage

This code signifies a narrowing of the spinal canal within the thoracic spine, specifically caused by an intervertebral disc. This compression can impinge on the spinal cord or nerve roots, leading to various neurological symptoms.

Apply this code when documentation clearly indicates thoracic spinal canal stenosis due to a disc pathology. This diagnosis is typically supported by imaging studies (e.g., MRI, CT scan) showing disc protrusion or herniation contributing to the narrowing, along with clinical findings consistent with thoracic myelopathy or radiculopathy.

• Ensure the documentation specifies the thoracic region (rib cage) and disc as the etiology of the stenosis.
• Distinguish from stenosis due to other causes, such as osteophytes or ligamentous hypertrophy.
• Sequence this code after any underlying disc disorder (e.g., M51.2-) if the disc pathology is the primary reason for the encounter.