2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Congential Anomalies 740-759 > Congenital Anomalies Of Ear Face And Neck 744.* > 2008 ICD-9-CM Diagnosis 744.83 Macrostomia  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 744.83 can be accessed here. Greatly exaggerated width of the mouth, resulting from failure of union of the maxillary and mandibular processes, with extension of the oral orifice toward the ear. The defect may be unilateral or bilateral. (Dorland, 27th ed) 744.83 is a specific code that can be used to specify a diagnosis 744.83 contains 2 index entries View the ICD-9-CM Volume 1 744.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 744.83: Macrostomia (congenital) 744.83 Meloschisis 744.83