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 744.46 Preauricular sinus or fistula  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 Therefore, this code may be out of date.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 744.46 can be accessed here. 744.46 is a specific code that can be used to specify a diagnosis 744.46 contains 4 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 744.46: Anomaly, anomalous (congenital) (unspecified type) 759.9 preauricular sinus 744.46 Fistula (sinus) 686.9 preauricular (congenital) 744.46 Imperfect closure (congenital) preauricular sinus 744.46 Sinus - see also Fistula preauricular 744.46