2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Supplementary Classification Of Factors Influencing Health Status And Contact With Health Services V01-V85 > Liveborn Infants According To Type Of Birth V30-V39 > Twin Birth Unspecified Whether Mate Liveborn Or Stillborn V33.* > 2006 ICD-9-CM Diagnosis V33.1 Twin birth unspecified whether mate liveborn or stillborn born before admission to hospital View the most recent version of ICD-9-CM V33.1 V33.1 is a specific code that can be used to specify a diagnosis V33.1 contains 1 index entry View the ICD-9-CM Volume 1 V33.* hierarchy  Index entries containing V33.1: Newborn (infant) (liveborn) twin NEC born outside hospital hospitalized V33.1