Extension: No more than this many characters

Connectathon 11 Snapshot

This page is part of the FHIR Specification (v1.2.0: STU 3 Draft). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions

Extension No more than this many characters - Detailed Descriptions

Detailed Descriptions for the elements in the extension.

Extension
Definition	The maximum number of characters that must be present in the simple data type to be considered a "valid" instance.
Control	0..1
Type	Extension
Comments	For base64binary, reflects the number of characters representing the encoded data, not the number of bytes of the binary data.
Invariants	Defined on this element inv-12: Maximum length can only be declared for simple question types (xpath: parent::*/f:type/@value=('boolean', 'decimal', 'integer', 'open-choice', 'string', 'text', 'url'))
Extension.id
Definition	unique id for the element within a resource (for internal references).
Control	0..1
Type	id
Extension.extension(extension)
Definition	An Extension
Control	0..0
Type	Extension
Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Control	1..1
Type	uri
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 should be version specific. This will ideally be the URI for the Resource Profile defining the extension, with the code for the extension after a #.
Fixed Value	http://hl7.org/fhir/StructureDefinition/questionnaire-maxLength
Extension.valueInteger
Definition	Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).
Control	1..1
Type	integer