The description display term for a SNOMED CT concept.
This extension SHALL be used with the HL7 core-defined extension coding-sctdescid to support the exchange of the selected description display term for a SNOMED CT concept, where the selected display term is different to the preferred term.
The description display term associated with the ID within the coding-sctdescid extension is important to enable the representation of the exact term that was entered by the clinician that recorded the data, or the exact term that a legacy code e.g. a Read v2 code has been translated to using an assured mapping table.
There are no (further) constraints on this element
Element id
Extension.extension
Short description
Additional content defined by implementations
Alternate names
extensions, user content
Definition
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Comments
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Source of the definition for the extension code - a logical name or a URL.
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.
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
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.
<descriptionvalue="The description display term for a SNOMED CT concept." />
<purposevalue="This extension SHALL be used with the HL7 core-defined extension [coding-sctdescid](https://hl7.org/fhir/R4/extension-coding-sctdescid.html) to support the exchange of the selected description display term for a SNOMED CT concept, where the selected display term is different to the preferred term. \nThe description display term associated with the ID within the coding-sctdescid extension is important to enable the representation of the exact term that was entered by the clinician that recorded the data, or the exact term that a legacy code e.g. a Read v2 code has been translated to using an assured mapping table." />
"description": "The description display term for a SNOMED CT concept.",
"purpose": "This extension SHALL be used with the HL7 core-defined extension [coding-sctdescid](https://hl7.org/fhir/R4/extension-coding-sctdescid.html) to support the exchange of the selected description display term for a SNOMED CT concept, where the selected display term is different to the preferred term. \nThe description display term associated with the ID within the coding-sctdescid extension is important to enable the representation of the exact term that was entered by the clinician that recorded the data, or the exact term that a legacy code e.g. a Read v2 code has been translated to using an assured mapping table.",
An example to illustrate the extension which adds a SNOMED CT description ID to CodeableConcept
Extension-UKCore-CodingSCT-Heart-Example
An example to illustrate the use of an extension to represent a SNOMED CT concept with a specific Description ID — typically to preserve or specify which synonym or preferred term was originally used in a clinical system
Extension-UKCore-CodingSCT-IllicitDrugs-Example
An example to illustrate the use of two extensions, one to represent a SNOMED CT concept with a specific Description ID, the other to represent the associated SNOMED CT Term (text description) — typically to preserve or specify which synonym or preferred term was originally used in a clinical system
Extension-UKCore-CodingSCT-MoleOfSkin-Example
This is a FHIR Condition resource recording that the patient has a benign mole (melanocytic naevus) on the skin. It includes both CTV3 and SNOMED codes, along with user-facing text "Moles".
Extension-UKCore-CodingSCT-Potassium-Example
An example to illustrate the use of two extensions, one to represent a SNOMED CT concept with a specific Description ID, the other to represent the associated SNOMED CT Term (text description) — typically to preserve or specify which synonym or preferred term was originally used in a clinical system
Extension-UKCore-CodingSCT-Weight-Example
An example to illustrate the use of an extension to represent a SNOMED CT concept with a specific Description ID — typically to preserve or specify which synonym or preferred term was originally used in a clinical system
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Examples
Coding SNOMED CT Description Id- An example to illustrate the extension of adding a SNOMED CT description Id and display Term. Extension-UKCore-CodingSCTDescId-Example
Extension Specific Guidance
This extension is used alongside the HL7 core-defined coding-sctdescid to support the exchange of the selected description display term for a SNOMED CT concept, where the selected display term is different to the preferred term. Specific guidance on the usage of this extension can be found within the CodeableConcept Guidance
