2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Congenital Anomalies 740-759 > Congenital Anomalies Of Ear Face And Neck 744.* > 2006 ICD-9-CM Diagnosis 744.23 Microtia View the most recent version of ICD-9-CM 744.23 744.23 is a specific code that can be used to specify a diagnosis 744.23 contains 2 index entries View the ICD-9-CM Volume 1 744.* hierarchy  Index entries containing 744.23: Hypoplasia, hypoplasis 759.89 ear 744.29 auricle 744.23 Microtia (congenital) (external ear) 744.23