Intervertebral disc disorders with myelopathy, lumbar region

This code signifies a condition where a disc problem in the lower back (lumbar spine) is causing compression of the spinal cord itself, leading to neurological deficits. Myelopathy indicates direct involvement and dysfunction of the spinal cord, distinguishing it from nerve root compression (radiculopathy).

Apply this code when documentation clearly states a lumbar intervertebral disc disorder (e.g., herniation, degeneration) is causing myelopathy. Clinical findings such as gait disturbance, spasticity, hyperreflexia, or bowel/bladder dysfunction attributable to spinal cord compression in the lumbar region support its use.

• Ensure documentation explicitly states "myelopathy" and specifies the lumbar region. Do not assume myelopathy if only radiculopathy is mentioned.
• Distinguish carefully from codes for radiculopathy (e.g., M54.16), which involves nerve root compression rather than spinal cord compression.
• Always review imaging reports and neurological exam findings to confirm the presence and location of myelopathy due to disc disease.