NHSDigital · github-actions · Apr 16, 2026 · Apr 16, 2026
diff --git a/...ence/Home/ProfilesandExtensions/UKCore-Observation-VitalSigns-BMI/Index.page.md b/...ence/Home/ProfilesandExtensions/UKCore-Observation-VitalSigns-BMI/Index.page.md
@@ -26,7 +26,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-BMI profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...ProfilesandExtensions/UKCore-Observation-VitalSigns-BloodPressure/Index.page.md b/...ProfilesandExtensions/UKCore-Observation-VitalSigns-BloodPressure/Index.page.md
@@ -26,7 +26,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-BloodPressure profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 An instance of the UKCore-Observation-VitalSigns-BloodPressure resource SHALL have the `Observation.code` element populated, with a LOINC "magic code" and SNOMED CT concept as detailed below. In addition, the individual Systolic and Diastolic readings SHALL be populated in `Observation.component` as detailed below.
 

diff --git a/...me/ProfilesandExtensions/UKCore-Observation-VitalSigns-BodyHeight/Index.page.md b/...me/ProfilesandExtensions/UKCore-Observation-VitalSigns-BodyHeight/Index.page.md
@@ -25,7 +25,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-BodyHeight profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...ofilesandExtensions/UKCore-Observation-VitalSigns-BodyTemperature/Index.page.md b/...ofilesandExtensions/UKCore-Observation-VitalSigns-BodyTemperature/Index.page.md
@@ -26,7 +26,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-BodyTemperature profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...me/ProfilesandExtensions/UKCore-Observation-VitalSigns-BodyWeight/Index.page.md b/...me/ProfilesandExtensions/UKCore-Observation-VitalSigns-BodyWeight/Index.page.md
@@ -25,7 +25,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-BodyWeight profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...ilesandExtensions/UKCore-Observation-VitalSigns-HeadCircumference/Index.page.md b/...ilesandExtensions/UKCore-Observation-VitalSigns-HeadCircumference/Index.page.md
@@ -26,7 +26,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-HeadCircumference profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...ome/ProfilesandExtensions/UKCore-Observation-VitalSigns-HeartRate/Index.page.md b/...ome/ProfilesandExtensions/UKCore-Observation-VitalSigns-HeartRate/Index.page.md
@@ -25,7 +25,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-HeartRate profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...filesandExtensions/UKCore-Observation-VitalSigns-OxygenSaturation/Index.page.md b/...filesandExtensions/UKCore-Observation-VitalSigns-OxygenSaturation/Index.page.md
@@ -25,7 +25,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-OxygenSaturation profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...ofilesandExtensions/UKCore-Observation-VitalSigns-RespirationRate/Index.page.md b/...ofilesandExtensions/UKCore-Observation-VitalSigns-RespirationRate/Index.page.md
@@ -25,7 +25,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-The UKCore-Observation-VitalSigns-RespirationRate profile further derives from {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} and this page only shows the differences between the two. Refer to {{pagelink:UKCore-Observation,text:UKCore-Observation}} and {{pagelink:UKCore-Observation-VitalSigns,text:UKCore-Observation-VitalSigns}} for more implementation guidance.
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes.
 
 ### Mandatory and Must Support Data Elements
 

diff --git a/...Sequence/Home/ProfilesandExtensions/UKCore-Observation-VitalSigns/Index.page.md b/...Sequence/Home/ProfilesandExtensions/UKCore-Observation-VitalSigns/Index.page.md
@@ -25,9 +25,7 @@ The following are example usage scenarios for the UK Core Observation Vital Sign
 
 ## Profile Specific Implementation Guidance: ##
 
-This is a derived profile of {{pagelink:UKCore-Observation,text:UKCore-Observation}} and this page only shows the differences between the two. Refer to the base Profile for more implementation guidance.
-
-This guidance is also designed to align with [https://hl7.org/fhir/R4/observation-vitalsigns.html](HL7 Observation Vital Signs guidance) where possible.
+This guidance is designed to align with [https://hl7.org/fhir/R4/observation-vitalsigns.html](HL7 Observation Vital Signs guidance).
 
 The guidance on this page also applies to the following profiles, that are derived from the UK Core Observation Vital Signs profile:
 - {{pagelink:UKCore-Observation-VitalSigns-BloodPressure}}
@@ -40,6 +38,8 @@ The guidance on this page also applies to the following profiles, that are deriv
 - {{pagelink:UKCore-Observation-VitalSigns-OxygenSaturation}}
 - {{pagelink:UKCore-Observation-VitalSigns-RespirationRate}}
 
+The use of LOINC codes are neccessary to conform to <a href="https://hl7.org/fhir/R4/observation.html#core">HL7 international</a> requirements. SNOMED CT Codes have been added as equivalent codes. 
+
 ### Mandatory and Must Support Data Elements
 
 The following elements, in addition to those in the corresponding {{pagelink:UKCore-Observation,text:UKCore-Observation}} parent profile, are identified as MustSupport, and it is expected that consumers and suppliers SHALL support these as per the {{pagelink:Guidance-MustSupport}}.

diff --git a/guides/UKCoreVersionHistory/Home/STU3-Sequence.page.md b/guides/UKCoreVersionHistory/Home/STU3-Sequence.page.md
@@ -22,6 +22,7 @@ topic: STU3Sequence
 <br>
 <b>General IG improvements:</b><br>
 <ul>
+<li>Changed all VitalSigns derived profiles baseDefinitions to reference HL7 Internal profiles. This ensures international conformance as per <a href="https://build.fhir.org/observation.html#core">10.1.1.1 Core Profiles for Observation</a>.
 <li>Removed IG pages and references to retired and deleted R5 backport Extensions.</li>
 <li>Removed references to retired and deleted R5 backport Extensions in StructureDefinition assets: <code>UKCore-DiagnosticReport-Lab</code>; <code>UKCore-DiagnosticReport</code>; <code>UKCore-FamilyMemberHistory</code>; <code>UKCore-Observation-Lab</code>; <code>UKCore-Observation</code>; and <code>UKCore-Specimen</code>.</li>
 <li>Retired R5 backport Extension assets: <code>Extension-UKCore-BodySiteReference</code>; <code>Extension-UKCore-DiagnosticReportComposition</code>; <code>Extension-UKCore-DiagnosticReportNote</code>; <code>Extension-UKCore-DiagnosticReportSupportingInfo</code>; <code>Extension-UKCore-FamilyMemberHistoryParticipant</code>; <code>Extension-UKCore-ObservationBodyStructure</code>; <code>Extension-UKCore-ObservationTriggeredBy</code>; and <code>Extension-UKCore-SpecimenCollectionCollector</code>.</li>