M51.4Non-Billable (Header)Schmorl's nodesChild CodesM51.44Schmorl's nodes, thoracic regionM51.45Schmorl's nodes, thoracolumbar regionM51.46Schmorl's nodes, lumbar regionM51.47Schmorl's nodes, lumbosacral regionCode Hierarchy└M51Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders└M51.4Schmorl's nodes└M51.4Schmorl's nodes