2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Diseases Of Arteries, Arterioles, And Capillaries 440-448 > Polyarteritis Nodosa And Allied Conditions 446.* > 2008 ICD-9-CM Diagnosis 446.3 Lethal midline granuloma  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 Therefore, this code may be out of date.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 446.3 can be accessed here. A non-neoplastic disease of unknown etiology beginning with inflammation, ulceration, and perforation of nose and palate and progressing to gradual destruction of midline facial structures. 446.3 is a specific code that can be used to specify a diagnosis 446.3 contains 6 index entries View the ICD-9-CM Volume 1 446.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 446.3 also known as: Malignant granuloma of face Index entries containing 446.3: Granuloma NEC 686.1 facial lethal midline 446.3 malignant 446.3 gangraenescens 446.3 lethal midline 446.3 malignant, face 446.3 midline 446.3