Number of diagnostic colonoscopies1 which have been performed on an inpatient or day case basis in NHS Lanarkshire hospitals on patients aged 80 and under in 2010-11 compared with 2005-06: Year Total number of Colonoscopy procedures Number of Colonoscopies recorded as main procedure 2005-06 2,491 2,180 2010-11 6,158 5,481 Source: ISD Scotland, SMR01. Note: 1. The OPCS-4 procedure code used to identify a colonoscopy was H22 - Diagnostic endoscopic examination of colon.