Number of diagnostic colonoscopies1 which have been performed on an inpatient or day case basis in NHS Lanarkshire hospitals in 2010-11 compared with 2005-06 Year Total number of Colonoscopy procedures Number of Colonoscopies recorded as main procedure 2005-06 2,657 2,314 2010-11 6,460 5,717 Source: ISD Scotland, SMR01. Note: 1. The OPCS-4 procedure code used to identify a colonoscopy was H22 - Diagnostic endoscopic examination of colon.