identifier

A unique identifier assigned to this immunization record.

identifier.system

A URI for the system that has allocated the vaccination identifier. Note, this must be unique within a given Supplier system or instance of Supplier system.

e.g.

1. Example of a “single instance for all customers” Supplier system https://supplierABC/identifiers/vacc.

2. Example of “per customer instance” Supplier system https://supplierABC/ODSCode/NKO41/identifiers/vacc.

identifier.value

A unique identifier for the vaccination record, that is consistent between any subsequent update or delete records.

Ideally this would be a GUID / UUID.

Value in combination with UNIQUE_ID_URI must be globally unique. In other words, a combination of identifier.value and identifier.system act as composite primary key to allow lookup of any Adverse Reactions records from the corresponding Adverse Reaction data file.

1. UUID example: e045626e-4dc5-4df3-bc35-da25263f901e

2. Example of a “single instance for all customers” Supplier system ACME-vacc123456.

3. Example of “per customer instance” Supplier system ACME-CUSTOMER1-vacc123456 ACME-CUSTOMER2-vacc123456.