M40.5Non-Billable (Header)Lordosis, unspecifiedChild CodesM40.50Lordosis, unspecified, site unspecifiedM40.55Lordosis, unspecified, thoracolumbar regionM40.56Lordosis, unspecified, lumbar regionM40.57Lordosis, unspecified, lumbosacral regionCode Hierarchy└M40Kyphosis and lordosis└M40.5Lordosis, unspecified└M40.5Lordosis, unspecified