2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Congenital Anomalies 740-759 > 2006 ICD-9-CM Diagnosis 758 Chromosomal anomalies View the most recent version of ICD-9-CM 758 Clinical conditions caused by an abnormal chromosome constitution in which there is extra or missing chromosome material (either a whole chromosome or a chromosome segment). 758 is a non-specific code that cannot be used to specify a diagnosis 758 Includes syndromes associated with anomalies in the number and form of chromosomes