Deformity in children and adolescents was subdivided into five sections: upper extremity, lower extremity, hip and pelvis, spine, and other/unspecified.
Upper extremity deformity includes diagnoses such as polydactyly, syndactyly, reduction deformities such as amelia and longitudinal deficiencies of the upper extremity, and other congenital deformities such as synostosis, Madelung deformity, and Apert syndrome. A complete listing of deformity codes can be found by in the ICD-9-CM Child and Adolescents Codes.
Lower extremity deformity includes diagnoses such as polydactyly, syndactyly, reduction deformities such as amelia and longitudinal deficiencies of the lower extremity, genu varum, genu valgum, and other congenital developmental deformities such as clubfoot and flatfoot.
Hip and pelvis deformity includes diagnoses such as coxa valga, coxa vara, slipped capital femoral epiphysis, pelvic deformity, Legg Calves Perthes disease, and developmental dysplasia of the hip.
Spine deformity includes anomalies of the spinal cord such as syringomyelia and diastomatomyelia, as well as deformities of the vertebral column such as scoliosis, kyphosis, spondylolysis, spondylolisthesis, and congenital spinal anomalies.
Other and unspecified deformities include deformities of the chest wall such as pectus excavatum and pectus carinatum, as well as nonspecific deformity diagnoses.