description: null package_name: uk.nhsdigital.medicines.r4 derivation: constraint name: Extension-DM-ControlledDrug type: Extension elements: extension: index: 0 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: quantityWords: match: {url: quantityWords} schema: _required: true index: 1 elements: url: pattern: {type: Uri, value: quantityWords} index: 2 value: choices: [valueString] index: 4 valueString: {type: string, choiceOf: value, index: 5} required: [valueString, value] schedule: match: {url: schedule} schema: binding: {strength: required, valueSet: 'https://fhir.nhs.uk/ValueSet/DM-medicationrequest-controlled-drug'} _required: true index: 6 elements: url: pattern: {type: Uri, value: schedule} index: 7 value: choices: [valueCoding] index: 9 valueCoding: {type: Coding, choiceOf: value, index: 10} value[x]: elements: system: {index: 11} code: {index: 12} display: {index: 13} required: [display, system, code] required: [valueCoding, value] url: pattern: {type: Uri, value: 'https://fhir.nhs.uk/StructureDefinition/Extension-DM-ControlledDrug'} index: 14 value: choices: [] index: 16 package_version: 2.1.1-alpha extensions: quantityWords: url: quantityWords _required: true index: 1 elements: url: pattern: {type: Uri, value: quantityWords} index: 2 value: choices: [valueString] index: 4 valueString: {type: string, choiceOf: value, index: 5} required: [valueString, value] schedule: url: schedule binding: {strength: required, valueSet: 'https://fhir.nhs.uk/ValueSet/DM-medicationrequest-controlled-drug'} _required: true index: 6 elements: url: pattern: {type: Uri, value: schedule} index: 7 value: choices: [valueCoding] index: 9 valueCoding: {type: Coding, choiceOf: value, index: 10} value[x]: elements: system: {index: 11} code: {index: 12} display: {index: 13} required: [display, system, code] required: [valueCoding, value] class: extension kind: complex-type url: https://fhir.nhs.uk/StructureDefinition/Extension-DM-ControlledDrug base: http://hl7.org/fhir/StructureDefinition/Extension version: null