2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Supplementary Classification Of Factors Influencing Health Status And Contact With Health Services V01-V86 > Persons Encountering Health Services For Specific Procedures And Aftercare V50-V59 > Encounter For Other And Unspecified Procedures And Aftercare V58.* > 2008 ICD-9-CM Diagnosis V58.1 Encounter for antineoplastic chemotherapy and immunotherapy  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 Therefore, this code may be out of date.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 V58.1 can be accessed here. V58.1 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 V58.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. V58.1 also known as: Encounter or admission for chemotherapy V58.1 excludes: chemotherapy and immunotherapy for nonneoplastic conditions-code to condition prophylactic chemotherapy against disease which has never been present (V03.0-V07.9)