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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Respiratory And Intrathoracic Organs 160-165 > Malignant Neoplasm Of Other And Ill-Defined Sites Within The Respiratory System And Intrathoracic Organs 165.* > 2008 ICD-9-CM Diagnosis 165.0 Malignant neoplasm of upper respiratory tract part unspecified  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 Therefore, this code may be out of date.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 165.0 can be accessed here. 165.0 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 165.* hierarchy