• require type as identifier is using the same system as other card types
  • assume CRN has all separators removed '-'

Example:

<Patient>
    ...
    <identifier>
        
        <type> 
           <coding> 
               <system value="http://hl7.org/fhir/v2/0203"/>
               <code value="HC"/>
               <display value="Health Card Number"/>
            </coding>
            <text value="Health Card Number"/> 
        </type>
        <system value="http://ns.electronichealth.net.au/id/hi/crn"/>
        <value value="307111942H"/>
        
        
    </identifier>
    ...
</patient>