Community Health Index (CHI)
The CHI is a computerised database of patients within the NHS in Scotland.
It holds your name, address including postcode, date of birth, gender and details of your registered GP Practice including the date you joined the GP Practice.
It also holds some historical data including your previous GP Practice.
Each patient on the CHI has a unique 10 digit CHI number. This number is used for communications within the NHS in Scotland and also to track your medical records.