description: This flag is true if the dose is determined at a single point.\nPoint doses are often used to check dose at a specific point in a calculated 3D dose distribution.\nSince point doses mostly have a technical role, high-level summaries may decide to exclude them from displays. package_name: hl7.fhir.us.codex derivation: constraint name: PointDose type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-point-dose'} index: 1 value: short: Point Dose choices: [valueBoolean] index: 3 valueBoolean: {type: boolean, short: Point Dose, choiceOf: value, index: 4} package_version: radiation-therapy-1.0.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-point-dose base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0