## Profile Comparison between http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core vs http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core

Left: | Observation: Medical Test Result (EU core) (http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core)
Right: | Observation: Medical Test Result (EU core) (http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core)

### Messages

Error | StructureDefinition.version | Values for version differ: '2.0.0-gamma' vs '2.0.0'
Information | StructureDefinition.status | Values for status differ: 'draft' vs 'active'
Information | StructureDefinition.date | Values for date differ: '2026-02-25T10:00:47+01:00' vs '2026-04-27T22:40:12+03:00'
Information | Observation.code | Example/preferred bindings differ at Observation.code using binding from MedicalTestResultEuCore
Error | Observation.hasMember | Type Mismatch: Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core]]) vs Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core]])
Error | Observation.derivedFrom | Type Mismatch: Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core], CanonicalType[http://hl7.org/fhir/StructureDefinition/ImagingStudy]]) vs Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core], CanonicalType[http://hl7.org/fhir/StructureDefinition/ImagingStudy]])
Information | StructureDefinition.short | Values for short differ: 'Additional content defined by implementations' vs 'Extension'
Information | StructureDefinition.definition | Values for definition differ: '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.' vs 'An Extension'
Information | Observation.component.code | Example/preferred bindings differ at Observation.component.code using binding from MedicalTestResultEuCore

### Metadata

Name | Value | Comments
--- | --- | ---
abstract | false |
baseDefinition | http://hl7.org/fhir/StructureDefinition/Observation |
copyright | Copyright HL7 Europe. Licensed under creative commons public domain (CC0 1.0). |
date | 2026-02-25T10:00:47+01:00 | 2026-04-27T22:40:12+03:00 | Values Differ
description | This profile introduces essential constraints and extensions for the Observation resource for Medical Test Results that apply across multiple use cases. |
experimental |  |
fhirVersion | 4.0.1 |
jurisdiction |  |
jurisdiction[0] | http://unstats.un.org/unsd/methods/m49/m49.htm#150 |
kind | resource |
name | MedicalTestResultEuCore |
publisher | HL7 Europe |
purpose |  |
status | draft | active | Values Differ
title | Observation: Medical Test Result (EU core) |
type | Observation |
url | http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core |
version | 2.0.0-gamma | 2.0.0 | Values Differ

### Structure

Name | L Flags | L Card. | L Type | L Description & Constraints | R Flags | R Card. | R Type | R Description & Constraints | Comments
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Observation | C | 0..* | Observation | Measurements and simple assertions | C | 0..* | Observation | Measurements and simple assertions Constraints: obs-value-1 |
id | Σ | 0..1 | id | Logical id of this artifact | Σ | 0..1 | id | Logical id of this artifact |
meta | Σ | 0..1 | Meta | Metadata about the resource | Σ | 0..1 | Meta | Metadata about the resource |
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created | ?!Σ | 0..1 | uri | A set of rules under which this content was created |
language |  | 0..1 | code | Language of the observation Binding: ?? (preferred): A human language.
Additional Bindings | Purpose
?? | Max Binding
|  | 0..1 | code | Language of the observation Binding: ?? (preferred): A human language.
Additional Bindings | Purpose
?? | Max Binding
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements |
contained |  | 0..* | Resource | Contained, inline Resources |  | 0..* | Resource | Contained, inline Resources |
Slices for extension |  | 0..* | Extension | Extension Slice: Unordered, Open by value:url |  | 0..* | Extension | Extension Slice: Unordered, Open by value:url |
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored | ?! | 0..* | Extension | Extensions that cannot be ignored |
identifier | Σ | 0..* | Identifier | Business Identifier for observation | Σ | 0..* | Identifier | Business Identifier for observation |
basedOn | Σ | 0..* | Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest) | Fulfills plan, proposal or order | Σ | 0..* | Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest) | Fulfills plan, proposal or order |
partOf | Σ | 0..* | Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy) | Part of referenced event | Σ | 0..* | Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy) | Part of referenced event |
status | ?!Σ | 1..1 | code | registered | preliminary | final | amended + Binding: ?? (required): Codes providing the status of an observation. | ?!Σ | 1..1 | code | registered | preliminary | final | amended + Binding: ?? (required): Codes providing the status of an observation. |
category |  | 1..* | CodeableConcept | Classification of type of observation Binding: ?? (preferred): Codes for high level observation categories. |  | 1..* | CodeableConcept | Classification of type of observation Binding: ?? (preferred): Codes for high level observation categories. |
code | Σ | 1..1 | CodeableConcept | Type of observation (code / type) Binding: ?? (preferred) | Σ | 1..1 | CodeableConcept | Type of observation (code / type) Binding: ?? (example) | Example/preferred bindings differ at Observation.code using binding from MedicalTestResultEuCore
subject | Σ | 1..1 | Reference(Patient (EU core)) | Who and/or what the observation is about | Σ | 1..1 | Reference(Patient (EU core) | Device | Group | Location) | Who and/or what the observation is about |
focus | Σ | 0..* | Reference(Patient (EU core) | RelatedPerson | Group | Device | Location (EU core)) | What the observation is about, when it is not about the subject of record | Σ | 0..* | Reference(Patient (EU core) | RelatedPerson | Group | Device | Location (EU core)) | What the observation is about, when it is not about the subject of record |
encounter | Σ | 0..1 | Reference(Encounter) | Healthcare event during which this observation is made | Σ | 0..1 | Reference(Encounter) | Healthcare event during which this observation is made |
effective[x] | Σ | 1..1 | dateTime, Period | Clinically relevant time/time-period for observation | Σ | 1..1 | dateTime, Period | Clinically relevant time/time-period for observation |
issued | Σ | 0..1 | instant | Date/Time this version was made available | Σ | 0..1 | instant | Date/Time this version was made available |
performer | Σ | 0..* | Reference(Practitioner (EU core) | PractitionerRole (EU core) | Organization (EU core)) | Who is responsible for the observation | Σ | 0..* | Reference(Practitioner (EU core) | PractitionerRole (EU core) | Organization (EU core) | Patient (EU core) | RelatedPerson) | Who is responsible for the observation |
id |  |  |  |  |  | 0..1 | string | Unique id for inter-element referencing | Added this element
Slices for extension |  |  |  |  |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | Added this element
reference |  |  |  |  | Σ C | 0..1 | string | Literal reference, Relative, internal or absolute URL | Added this element
type |  |  |  |  | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ?? (extensible): Aa resource (or, for logical models, the URI of the logical model). | Added this element
identifier |  |  |  |  | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known | Added this element
display |  |  |  |  | Σ | 0..1 | string | Text alternative for the resource | Added this element
Slices for value[x] | Σ C | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Actual result Slice: Unordered, Open by type:$this | Σ C | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Actual result Slice: Unordered, Open by type:$this |
dataAbsentReason | C | 0..1 | CodeableConcept | Why the result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. | C | 0..1 | CodeableConcept | Why the result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. |
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |
note |  | 0..* | Annotation | Comments about the observation |  | 0..* | Annotation | Comments about the observation |
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: ?? (example): Codes describing anatomical locations. May include laterality. |  | 0..1 | CodeableConcept | Observed body part Binding: ?? (example): Codes describing anatomical locations. May include laterality. |
method |  | 0..1 | CodeableConcept | How it was done Binding: ?? (example): Methods for simple observations. |  | 0..1 | CodeableConcept | How it was done Binding: ?? (example): Methods for simple observations. |
specimen |  | 0..1 | Reference(Specimen) | Specimen used for the observation |  | 0..1 | Reference(Specimen) | Specimen used for the observation |
device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device |
referenceRange | C | 0..* | BackboneElement | Provides guide for interpretation | C | 0..* | BackboneElement | Provides guide for interpretation |
id |  | 0..1 | string | Unique id for inter-element referencing |  | 0..1 | string | Unique id for inter-element referencing |
extension |  | 0..* | Extension | Additional content defined by implementations |  | 0..* | Extension | Additional content defined by implementations |
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
low | C | 0..1 | ?? | Low Range, if relevant | C | 0..1 | ?? | Low Range, if relevant |
high | C | 0..1 | ?? | High Range, if relevant | C | 0..1 | ?? | High Range, if relevant |
type |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ?? (preferred): Code for the meaning of a reference range. |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ?? (preferred): Code for the meaning of a reference range. |
appliesTo |  | 0..* | CodeableConcept | Reference range population Binding: ?? (example): Codes identifying the population the reference range applies to. |  | 0..* | CodeableConcept | Reference range population Binding: ?? (example): Codes identifying the population the reference range applies to. |
age |  | 0..1 | Range | Applicable age range, if relevant |  | 0..1 | Range | Applicable age range, if relevant |
text |  | 0..1 | string | Text based reference range in an observation |  | 0..1 | string | Text based reference range in an observation |
hasMember | Σ | 0..* | Reference(Observation: Medical Test Result (EU core)) | Related resource that belongs to the Observation group | Σ | 0..* | Reference(Observation: Medical Test Result (EU core)) | Related resource that belongs to the Observation group | Type Mismatch: Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core]]) vs Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core]])
derivedFrom | Σ | 0..* | Reference(Observation: Medical Test Result (EU core) | ImagingStudy) | Related measurements the observation is made from | Σ | 0..* | Reference(Observation: Medical Test Result (EU core) | ImagingStudy) | Related measurements the observation is made from | Type Mismatch: Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core], CanonicalType[http://hl7.org/fhir/StructureDefinition/ImagingStudy]]) vs Reference([CanonicalType[http://hl7.eu/fhir/base/StructureDefinition/medicalTestResult-eu-core], CanonicalType[http://hl7.org/fhir/StructureDefinition/ImagingStudy]])
component | Σ | 0..* | BackboneElement | Component results | Σ | 0..* | BackboneElement | Component results |
id |  | 0..1 | string | Unique id for inter-element referencing |  | 0..1 | string | Unique id for inter-element referencing |
extension |  | 0..* | Extension | Additional content defined by implementations |  | 0..* | Extension | Extension Slice: Unordered, Open by value:url |
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
code | Σ | 1..1 | CodeableConcept | Type of component observation (code / type) Binding: ?? (preferred) | Σ | 1..1 | CodeableConcept | Type of component observation (code / type) Binding: ?? (example) | Example/preferred bindings differ at Observation.component.code using binding from MedicalTestResultEuCore
Slices for value[x] | Σ | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Actual component result Slice: Unordered, Open by type:$this | Σ | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Actual component result Slice: Unordered, Open by type:$this |
dataAbsentReason | C | 0..1 | CodeableConcept | Why the component result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. | C | 0..1 | CodeableConcept | Why the component result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. |
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |
referenceRange |  | 0..* | See referenceRange (Observation) | Provides guide for interpretation of component result |  | 0..* | See referenceRange (Observation) | Provides guide for interpretation of component result |
Documentation for this format