Guidance on how to interpret the contents of this table can be found here

0. Extension
Definition

ERDRI-CDS - The age at which the condition was diagnosed.

ShortAge at Diagnosis
Control0..*
This element is affected by the following invariants: ele-1
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.id
Definition

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

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
5. Extension.url
Definition

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

Shortidentifies the meaning of the extension
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.

Control1..1
Typeuri
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
Fixed Valuehttps://github.com/BIH-CEI/RareLink/StructureDefinition/age-at-diagnosis
7. Extension.value[x]
Definition

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

ShortValue of extension
Control0..1
BindingUnless not suitable, these codes SHALL be taken from Age at Diagnosis Value Set
(extensible to https://github.com/BIH-CEI/RareLink/ValueSet/age-at-diagnosis-vs)
TypeCodeableConcept
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))