ICD-10-CM > M00-M99 > M50-M54 > M51 > M51.0 M51.0 Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathy Non-Billable/Non-Specific Codes M51.04Intervertebral disc disorders with myelopathy, thoracic regionM51.05Intervertebral disc disorders with myelopathy, thoracolumbar regionM51.06Intervertebral disc disorders with myelopathy, lumbar region