Other congenital malformations of spine, not associated with scoliosis Inclusion term(s):Congenital absence of vertebra NOSCongenital fusion of spine NOSCongenital malformation of lumbosacral (joint) (region) NOSCongenital malformation of spine NOSHemivertebra NOSMalformation of spine NOSPlatyspondylisis NOSSupernumerary vertebra NOS