Q76.4 - Other congenital malformations of spine, not associated with scoliosis
Q76.42 - Congenital lordosis
Q76.425 - Congenital lordosis, thoracolumbar region
Q76.426 - Congenital lordosis, lumbar region
Q76.427 - Congenital lordosis, lumbosacral region
Q76.428 - Congenital lordosis, sacral and sacrococcygeal region
Q76.429 - Congenital lordosis, unspecified region