2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Complications Of Pregnancy, Childbirth, And The Puerperium 630-677 > Complications Occurring Mainly In The Course Of Labor And Delivery 660-669 > Long Labor 662.* > 2006 ICD-9-CM Diagnosis 662.21 Prolonged second stage of labor delivered View the most recent version of ICD-9-CM 662.21 662.21 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 662.* hierarchy