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5.7.6 Resource Substance - Formal Definitions

Formal definitions for the elements in the Substance resource.

Substance
DefinitionA homogeneous material with a definite composition.
Control1..1
Substance.type
DefinitionA code (or set of codes) that identify this substance.
Control1..1
BindingSubstanceType: (See http://hl7.org/fhir/vs/substance-type)
TypeCodeableConcept
CommentsThis could be a reference to an externally defined code. It could also be a locally assigned code (e.g. a formulary), optionally with translations to the standard drug codes.
Substance.description
DefinitionA description of the substance - its appearance, handling requirements, and other usage notes.
Control0..1
Typestring
Substance.instance
DefinitionSubstance may be used to describe a kind of substance, or a specific package/container of the substance: an instance.
Control0..1
Substance.instance.identifier
DefinitionIdentifier associated with the package/container (usually a label affixed directly).
Control0..1
TypeIdentifier
Substance.instance.expiry
DefinitionWhen the substance is no longer valid to use. For some substances, a single arbitrary date is used for expiry.
Control0..1
TypedateTime
Substance.instance.quantity
DefinitionThe amount of the substance.
Control0..1
TypeQuantity
Substance.ingredient
DefinitionA substance can be composed of other substances.
Control0..*
Substance.ingredient.quantity
DefinitionThe amount of the ingredient in the substance - a concentration ratio.
Control0..1
TypeRatio
Substance.ingredient.substance
DefinitionAnother substance that is a component of this substance.
Control1..1
TypeResource(Substance)
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