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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Congenital Anomalies 740-759 > Congenital Anomalies Of Ear Face And Neck 744.* > 2007 ICD-9-CM Diagnosis 744.83 Macrostomia This code may be outdated. View the most recent version of ICD-9-CM 744.83 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 Index entries containing 744.83: Macrostomia (congenital) 744.83 Meloschisis 744.83