description: Verification of the patient or target position during a treatment fraction. package_name: hl7.fhir.us.codex derivation: constraint name: IntrafractionVerification type: Extension elements: extension: index: 0 slicing: slices: procedure: match: {} schema: _required: true index: 1 extensions: {} elements: extension: {index: 2} url: pattern: {type: Uri, value: procedure} index: 3 value: choices: [valueCodeableConcept] index: 5 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 6} required: [value, valueCodeableConcept] qualifier: match: {} schema: index: 7 extensions: {} elements: extension: {index: 8} url: pattern: {type: Uri, value: qualifier} index: 9 value: choices: [valueCodeableConcept] index: 11 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 12} required: [value, valueCodeableConcept] url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-intrafraction-verification'} index: 13 value: choices: [] index: 15 package_version: radiation-therapy-2.0.0-ballot extensions: procedure: url: null _required: true index: 1 extensions: {} elements: extension: {index: 2} url: pattern: {type: Uri, value: procedure} index: 3 value: choices: [valueCodeableConcept] index: 5 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 6} required: [value, valueCodeableConcept] qualifier: url: null index: 7 extensions: {} elements: extension: {index: 8} url: pattern: {type: Uri, value: qualifier} index: 9 value: choices: [valueCodeableConcept] index: 11 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 12} required: [value, valueCodeableConcept] class: extension kind: complex-type url: http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-intrafraction-verification base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.0-ballot required: [extension]