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Extension certainty - Detailed Descriptions

Patient Care Work Group Maturity Level: 1InformativeUse Context: Any

Detailed Descriptions for the elements in the extension.

Extension
Element IdExtension
Definition

Statement about the degree of clinical certainty that the specific substance was the cause of the manifestation in this reaction event.

Cardinality0..1 This element is affected by the following invariants: ele-1
Comments

When certainty is missing, it means no information exists (although it could be in narrative). By contrast, the unknown code is used when there is an explicit assertion that certainty is not known, such as when a patient eats a meal and it is unknown which food caused the reaction.

Invariants
Inherited by this element
ele-1RuleAll FHIR elements must have a @value or childrenhasValue() or (children().count() > id.count())
ext-1RuleMust have either extensions or value[x], not bothextension.exists() != value.exists()
Extension.id
Element IdExtension.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Cardinality0..1
Typestring
Extension.extension
Element IdExtension.extension
Definition

An Extension

Cardinality0..0
TypeExtension
SlicingThis element introduces a set of slices. The slicing rules are:
  • unordered
  • Open
  • discriminators: value:url
Extension.url
Element IdExtension.url
Definition

Source of the definition for the extension code - a logical name or a URL.

Cardinality1..1
Typeuri
Comments

The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

Fixed Valuehttp://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty
Extension.valueCodeableConcept
Element IdExtension.valueCodeableConcept
Definition

Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

Cardinality0..1
Terminology BindingStatement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.
The codes SHALL be taken from AllergyIntoleranceCertainty; other codes may be used where these codes are not suitable
TypeCodeableConcept