The LifeCourse metadata catalogue collates information about what data each of our longitudinal cohorts have collected, to showcase what types of data are available to other researchers and potential data users. The LifeCourse metadata catalogue is organised into constructs (e.g. Depression, Physical Activity) and measures (e.g. Strength and Difficulties Questionnaire). The terminology used to describe these constructs and measures has been applied from SNOMED CT-AU, an internationally recognised classification system. This workbook contains a comprehensive list of the terminology which describes the constructs assessed by the LifeCourse cohorts and the measures they align to.