{description: A CodeSystem used to indicate the reason for prescription excemption charge. Taken from HL7v3 UK Cancellation Reason, package_name: uk.nhsdigital.r4.test, name: PrescriptionChargeExemption, type: null, package_version: 2.16.0-prerelease, class: unknown, kind: null, url: 'https://fhir.nhs.uk/CodeSystem/prescription-charge-exemption', version: 2.0.0}