http://hl7.org/fhir/StructureDefinition/Substance|5.0.0
A homogeneous material with a definite composition.
description: A homogeneous material with a definite composition. derivation: specialization name: Substance type: Substance elements: description: {isModifier: false, short: 'Textual description of the substance, comments', mustSupport: false, isSummary: true, index: 5} category: isModifier: false short: What class/type of substance this is mustSupport: false array: true binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/substance-category'} isSummary: true index: 3 expiry: {isModifier: false, short: When no longer valid to use, mustSupport: false, isSummary: true, index: 6} instance: {isModifier: true, short: Is this an instance of a substance or a kind of one, mustSupport: false, isModifierReason: Not known why this is labelled a modifier, isSummary: true, index: 1} ingredient: isModifier: false short: Composition information about the substance mustSupport: false array: true isSummary: true index: 8 elements: quantity: {isModifier: false, short: Optional amount (concentration), mustSupport: false, isSummary: true, index: 9} substance: isModifier: false short: A component of the substance mustSupport: false choices: [] isSummary: true index: 11 required: [substance] status: isModifier: true short: active | inactive | entered-in-error mustSupport: false binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/substance-status|5.0.0'} isModifierReason: This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid isSummary: true index: 2 code: isModifier: false short: What substance this is mustSupport: false binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/substance-code'} isSummary: true index: 4 identifier: {isModifier: false, short: Unique identifier, mustSupport: false, array: true, isSummary: true, index: 0} quantity: {isModifier: false, short: Amount of substance in the package, mustSupport: false, isSummary: true, index: 7} class: resource kind: resource url: http://hl7.org/fhir/StructureDefinition/Substance base: http://hl7.org/fhir/StructureDefinition/DomainResource version: 5.0.0 required: [instance, code]