2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Congenital Anomalies 740-759 > Other Congenital Musculoskeletal Anomalies 756.* > 2006 ICD-9-CM Diagnosis 756.17 Spina bifida occulta View the most recent version of ICD-9-CM 756.17 A common congenital midline defect of fusion of the vertebral arch without protrusion of the spinal cord or meninges. The lesion is also covered by skin. L5 and S1 are the most common vertebrae involved. The condition may be associated with an overlying area of hyperpigmented skin, a dermal sinus, or an abnormal patch of hair. The majority of individuals with this malformation are asymptomatic although there is an increased incidence of tethered cord syndrome and lumbar SPONDYLOSIS. 756.17 is a specific code that can be used to specify a diagnosis 756.17 contains 1 index entry View the ICD-9-CM Volume 1 756.* hierarchy 756.17 Excludes spina bifida (aperta) (741.0-741.9)  Index entries containing 756.17: Spina bifida (aperta) 741.9 occulta 756.17