CHI Number

A patients CHI Number should be entered for Scottish practices as it provides one of the main identification factors.

For Registration Links practices with Partners, the Approval transaction for new patients may or may not contain the NHS number, but often contain the CHI number.

Of the ten digits of the CHI number, the first six digits are the patient's date of birth. When entering a CHI number on a patient's Registration screen, just enter the last four digits in the second section, the patient's date of birth completes automatically as the first six digits:

Training Tip - The second to last digit is odd if male and even if female. The last digit is a check digit:
Note - As the patient's date of birth and sex make up part of the patient's CHI number you are strongly advised to contact your Health Board (Scotland) before making any alteration to either of these. If either is amended, the patient is re-registered and a new CHI number generated.

For Registration Links practices with Partners, if you reject an incoming Amendment Transaction, then it does not update your system unless it contains a change to the patient's CHI number.

Patients migrating from Scotland to Northern Ireland are usually allocated a new CHI number.

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