• 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="PEN"/>
                <display value="Pension Number"/>
             </coding>
             <text value="Pension Number"/> 
         </type>
         <system value="http://ns.electronichealth.net.au/id/hi/crn"/>
         <value value="307111942H"/>
         
         
    </identifier>
    ...
</patient>