CHP started in Canterbury, New Zealand, in 2008, where 99% of general practitioners surveyed use it weekly in their practice, 70% of whom use it daily.
It is also used by practice nurses, pharmacists, physiotherapists, community nurses, and other allied health services.
Over 600 clinical pathways provide guidance on assessment, management, and referral for clinicians in 50 health systems caring for over 30 million people across New Zealand, Australia, and the UK.