M51 - Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
M51.4 - Schmorl's nodes
M51.44 - Schmorl's nodes, thoracic region
M51.45 - Schmorl's nodes, thoracolumbar region
M51.46 - Schmorl's nodes, lumbar region
M51.47 - Schmorl's nodes, lumbosacral region