These pages include current and historical coding frames used in HESA data collections and publications.
HECoS - the Higher Education Classification of Subjects (HECoS) is the new subject coding system used by HESA, UCAS and the Student Loans Company from 2019/20
JACS - the Joint Academic Coding System has been used to classify subjects from 2002/03 to 2018/19. Also contains information about the previous HESA Code classification.
Cost Centres - financial reporting tool used as a proxy for academic departments in HESA data.
REF 2014: Units of assessment - lists the coding of disciplines for the 2014 Research Excellence Framework and the 2008 Research Assessment Exercise.
Industrial and occupational classifications - information and breakdowns for the UK Standard Industrial Classification of Economic Activities (SIC) and the UK Standard Occupational Classification (SOC) system.