abstractbaseDefinitioncopyrightdate- Values Differ
descriptionexperimentalfhirVersionjurisdiction
jurisdiction[0]kindnamepublisherpurposestatustitletypeurlversion- Values Differ
| Left: | CH LAB-Report Observation Results: eGFR-CKD-EPI(AS) 2021 Creatinin/Cystatin-C based Profile (http://fhir.ch/ig/ch-lab-report/StructureDefinition/ch-lab-observation-egfr-ckd-epi-2021) |
| Right: | CH LAB-Report Observation Results: eGFR-CKD-EPI(AS) 2021 Creatinin/Cystatin-C based Profile (http://fhir.ch/ig/ch-lab-report/StructureDefinition/ch-lab-observation-egfr-ckd-epi-2021) |
| Error | StructureDefinition.version | Values for version differ: '2.0.0-ballot' vs '2.0.0-ci-build' |
| Information | StructureDefinition.date | Values for date differ: '2025-05-22T14:08:48+00:00' vs '2025-09-17T12:44:20+00:00' |
| Information | Observation.language | Example/preferred bindings differ at Observation.language using binding from ChLabObservation_eGFR_CKD_EPI_2021 |
| Information | Observation.category | Example/preferred bindings differ at Observation.category using binding from ChLabObservation_eGFR_CKD_EPI_2021 |
| Information | Observation.referenceRange.type | Example/preferred bindings differ at Observation.referenceRange.type using binding from ChLabObservation_eGFR_CKD_EPI_2021 |
| Information | Observation.component.referenceRange.type | Example/preferred bindings differ at Observation.component.referenceRange.type using binding from ChLabObservation_eGFR_CKD_EPI_2021 |
| Name | Value | Comments | |
|---|---|---|---|
| abstract | false | ||
| baseDefinition | http://fhir.ch/ig/ch-lab-report/StructureDefinition/ch-lab-observation-egfr | ||
| copyright | CC0-1.0 | ||
| date | 2025-05-22T14:08:48+00:00 | 2025-09-17T12:44:20+00:00 |
|
| description | Glomerular filtration rate (GFR) is considered the best overall index of kidney function; however measured GFR is not practical in the routine clinical setting. Estimated glomerular filtration rate (eGFR) is a suitable alternative and can be calculated for adults >= 18 years using an equation incorporating the patient's age, gender, and measured serum/plasma/blood creatinine only (eGFRcr) (this term) or both serum/plasma/blood creatinine and serum/plasma cystatin-C (eGFRcr-cys) [LOINC: 98979-8](https://loinc.org/98979-8/). The serum/plasma/blood creatinine value is based on a measurement procedure that is traceable to the isotope dilution mass spectrometry (IDMS) reference measurement procedure for creatinine. The 2021 CKD-EPI equations used for eGFRcr and eGFRcr-cys do not have a race term as does the older estimating equations that they replace. [https://www.nejm.org/doi/pdf/10.1056/NEJMoa2102953](https://www.nejm.org/doi/pdf/10.1056/NEJMoa2102953) There is a [corresponding calculator](https://www.kidney.org/professionals/gfr_calculator) For children below 18 y there is a [Pediatric GFR Calculator](https://www.kidney.org/professionals/kdoqi/gfr_calculatorPed) | ||
| experimental | |||
| fhirVersion | 4.0.1 | ||
| jurisdiction | |||
| jurisdiction[0] | urn:iso:std:iso:3166#CH | ||
| kind | resource | ||
| name | ChLabObservation_eGFR_CKD_EPI_2021 | ||
| publisher | HL7 Switzerland | ||
| purpose | |||
| status | active | ||
| title | CH LAB-Report Observation Results: eGFR-CKD-EPI(AS) 2021 Creatinin/Cystatin-C based Profile | ||
| type | Observation | ||
| url | http://fhir.ch/ig/ch-lab-report/StructureDefinition/ch-lab-observation-egfr-ckd-epi-2021 | ||
| version | 2.0.0-ballot | 2.0.0-ci-build |
|
| Name | L Flags | L Card. | L Type | L Description & Constraints | R Flags | R Card. | R Type | R Description & Constraints | Comments | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Observation | C | 0..* | ChLabObservation_eGFR | Laboratory result for a simple test or for a panel/study This profile also imposes the profile Observation Results: laboratory | C | 0..* | ChLabObservation_eGFR | Laboratory result for a simple test or for a panel/study This profile also imposes the profile Observation Results: laboratory | |||||||||
 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 resource content Binding: ?? (preferred): A human language.
| 0..1 | code | Language of the resource content Binding: ?? (preferred): A human language.
|
| ||||||||||
| 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 | Laboratory Test Kit Slice: Unordered, Open by value:url | 0..* | Extension | Laboratory Test Kit 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 | Status of this observation (e.g. preliminary, final,...) Binding: ?? (required): Codes providing the status of an observation. | ?!Σ | 1..1 | code | Status of this observation (e.g. preliminary, final,...) Binding: ?? (required): Codes providing the status of an observation. | |||||||||
| Slices for category | 1..* | CodeableConcept | Classification of type of observation Slice: Unordered, Open by value:$this Binding: ?? (preferred): Codes for high level observation categories. | 1..* | CodeableConcept | Classification of type of observation Slice: Unordered, Open by value:$this Binding: ?? (preferred): Codes for high level observation categories. |
| ||||||||||
| code | Σ | 1..1 | CodeableConcept | ValueSet for the allowed LOINC codes aiming at Creatinin / Creatinin and Cystatin C based eGFR Binding: ?? (required) | Σ | 1..1 | CodeableConcept | ValueSet for the allowed LOINC codes aiming at Creatinin / Creatinin and Cystatin C based eGFR Binding: ?? (required) | |||||||||
 subject | Σ | 1..1 | Reference(Patient: Animal | Patient: Person | Group | Device | Location) | Who and/or what the observation is about | Σ | 1..1 | Reference(Patient: Animal | Patient: Person | Group | Device | Location) | Who and/or what the observation is about | |||||||||
 id | 0..1 | string | Unique id for inter-element referencing | 0..1 | string | Unique id for inter-element referencing | |||||||||||
| Slices for extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |||||||||||
| reference | ΣC | 1..1 | string | Literal reference, Relative, internal or absolute URL | ΣC | 1..1 | string | Literal reference, Relative, internal or absolute URL | |||||||||
| 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). | 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). | |||||||||
| identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known | |||||||||
| display | Σ | 0..1 | string | Text alternative for the resource | Σ | 0..1 | string | Text alternative for the resource | |||||||||
| focus | Σ | 0..* | Reference(Resource) | What the observation is about, when it is not about the subject of record | Σ | 0..* | Reference(Resource) | 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 | |||||||||
| id | 0..1 | string | Unique id for inter-element referencing | 0..1 | string | Unique id for inter-element referencing | |||||||||||
| Slices for extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |||||||||||
| issued | Σ | 0..1 | instant | Date/Time this result was made available | Σ | 0..1 | instant | Date/Time this result was made available | |||||||||
| performer | Σ | 1..* | Reference(CH LAB-Report PractitionerRole | CH LAB-Report Practitioner | CH Core Organization | CareTeam | CH LAB-Report Patient | RelatedPerson) | Who is responsible for the observation | Σ | 1..* | Reference(CH LAB-Report PractitionerRole | CH LAB-Report Practitioner | CH Core Organization | CareTeam | CH LAB-Report Patient | RelatedPerson) | Who is responsible for the observation | |||||||||
| id | 0..1 | string | Unique id for inter-element referencing | 0..1 | string | Unique id for inter-element referencing | |||||||||||
| Slices for extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |||||||||||
| reference | ΣC | 0..1 | string | Literal reference, Relative, internal or absolute URL | ΣC | 0..1 | string | Literal reference, Relative, internal or absolute URL | |||||||||
| 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). | 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). | |||||||||
| identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known | |||||||||
| display | Σ | 0..1 | string | Text alternative for the resource | Σ | 0..1 | string | Text alternative for the resource | |||||||||
| Slices for value[x] | ΣC | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Actual result Slice: Unordered, Open by type:$this | ΣC | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Actual result Slice: Unordered, Open by type:$this | |||||||||
| dataAbsentReason | C | 0..1 | CodeableConcept | Provides a reason why the expected value is missing. Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. | C | 0..1 | CodeableConcept | Provides a reason why the expected value 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: ?? (preferred) Required Pattern: {"coding":[{"system":"http://snomed.info/sct","code":"703505007"}]} | 0..1 | CodeableConcept | How it was done Binding: ?? (preferred) Required Pattern: {"coding":[{"system":"http://snomed.info/sct","code":"703505007"}]} | |||||||||||
| specimen | 0..1 | Reference(CH LAB-Report Specimen) | Specimen used for this observation | 0..1 | Reference(CH LAB-Report Specimen) | Specimen used for this observation | |||||||||||
| device | 0..1 | Reference(Device | DeviceMetric) | Measuring instrument | 0..1 | Reference(Device | DeviceMetric) | Measuring instrument | |||||||||||
| 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..0 | Σ | 0..0 | |||||||||||||
| derivedFrom | Σ | 0..* | Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence) | Related measurements the observation is made from | Σ | 0..* | Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence) | Related measurements the observation is made from | |||||||||
 component | Σ | 0..* | BackboneElement | Laboratory result | Σ | 0..* | BackboneElement | Laboratory result | |||||||||
 id | 0..1 | string | Unique id for inter-element referencing | 0..1 | string | Unique id for inter-element referencing | |||||||||||
| Slices for extension | 0..* | Extension | Extension Slice: Unordered, Open by value:url | 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: ?? (example): Codes identifying names of simple observations. | Σ | 1..1 | CodeableConcept | Type of component observation (code / type) Binding: ?? (example): Codes identifying names of simple observations. | |||||||||
| 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 | |||||||||||
| 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 | |||||||||||
| Documentation for this format | |||||||||||||||||