FHIR R4 Symptoms Implementation Guide
1.0.0 - STU 1
FHIR R4 Symptoms Implementation Guide
1.0.0 - STU 1
FHIR R4 Symptoms Implementation Guide, published by HL7 International / Clinical Interoperability Council. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-symptoms-ig/ and changes regularly. See the Directory of published versions
| Official URL: http://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel | Version: 1.0.0 | ||||
| Standards status: Trial-use Active as of 2026-03-31 | Maturity Level: 2 | Computable Name: SymptomLogicalModel | |||
The FHIR Symptoms Logical Model defines the conceptual representation of symptom data, independent of any particular FHIR resource. It specifies the key elements needed to describe symptoms, including onset, severity, course, body site, and qualitative descriptors. This logical model captures the semantics of symptoms and provides a consistent structure for implementers and modelers.
Usages:
You can also check for usages in the FHIR IG Statistics
Description Differentials, Snapshots, and other representations.
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  SymptomLogicalModel |
0..* | Element | Symptom Logical Model Elements defined in Ancestors:@id, extension | |
  identifier |
1..1 | string | A unique string that identifies this instance of a symptom | |
| symptomCode |
1..1 | code | Coded description of symptom | |
| presentFlag |
1..1 | boolean | Whether the symptom is present or absent | |
 affectedPatient |
1..1 | Patient | The patient who is experiencing the symptom | |
  reporter[x] |
1..1 | The person who is reporting the symptom information | ||
  reporterPatient |
Patient | |||
 reporterRelatedPerson |
RelatedPerson | |||
| symptomDescription |
0..* | Annotation | Textual description of symptom as provided by patient or related person | |
| associatedSymptoms |
0..* | SymptomLogicalModel | Other symptoms associated with this symptom. Used when a patient or caregiver reports multiple symptoms in an encounter and a system wants to link all of them together | |
| associatedConditions |
0..* | Condition | Condition associated with this symptom. Used when a patient, caregiver, or clinician wants to link a symptom to a new or existing Condition. | |
| keyFeatures |
1..1 | BackboneElement | Key Features | |
| location |
0..* | BackboneElement | Where the patient feels the symptom in the body. | |
| code |
1..1 | code | Coded description of the location. | |
| qualifier |
0..* | string | Qualifers of the location, eg. radiating down my leg | |
| quality |
0..* | BackboneElement | The patient's internal perception of the symptom. | |
| note |
0..1 | Annotation | Textual description of the symptom quality | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the quality | |
| value |
1..1 | code | Code that represents the symptom quality | |
| severity |
0..1 | BackboneElement | The intensity with which the patient experiences the symptom. | |
| note |
0..1 | Annotation | Textual description of the symptom severity | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment if any used to determine the severity | |
| value |
1..1 | code | Code that represents the symptom severity | |
| impact |
0..* | BackboneElement | How the symptom is affecting the patient, either emotionally, mentally, or physically. | |
| note |
0..1 | Annotation | Textual description of the impact | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the impact | |
| value |
1..1 | code | Code that represents the impact | |
| surroundingEvents |
0..1 | BackboneElement | Events or circumstances related to symptom onset or intensity. | |
| triggerOrExacerbatingFactors |
0..* | BackboneElement | ||
| factor |
1..1 | code | Reference to the factor | |
| relatedMedication[x] |
0..* | Medication that patient suggests/reports triggers or exacerbates the symptom | ||
| relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
| alleviatingFactors |
0..* | BackboneElement | ||
| factor |
1..1 | code | Reference to the factor | |
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
 relatedMedication[x] |
0..* | Medication that patient suggests/reports alleviating the symptom | ||
 relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| otherEvents |
0..* | code | Patient-reported actions that were occuring at time of symptom onset | |
| frequency |
0..1 | BackboneElement | How often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week. | |
| quality |
0..1 | string | A qualitative expression of the frequency, eg. often | |
| quantity |
0..1 | Quantity | A quantitative expression of the frequency | |
| timing |
0..1 | BackboneElement | ||
| speedOfOnset |
0..1 | code | Qualitative expression of how the patient perceived the rate of the symptom to become apparent. | |
| onset[x] |
0..1 | Clinically relevant time or period for the symptom since first occurence. | ||
| onsetDateTime |
dateTime | |||
| onsetPeriod |
Period | |||
| note |
0..1 | Annotation | Information given by the patient about the overall timing of the symptom. | |
| duration |
0..1 | Duration | The length of time the symptom persists in this instance of occurence. | |
| clinicalCourse |
0..1 | code | Character of symptom onset. | |
| trend |
0..1 | code | Intensity of symptom over time | |
| metadata |
1..1 | BackboneElement | Non clinical information about the symptom | |
| documentationDate |
1..1 | dateTime | Date when symptom was documented in the system | |
| issued |
1..1 | dateTime | Date/time when the current version was made available. | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| SymptomLogicalModel |
0..* | Element | Symptom Logical Model Elements defined in Ancestors:@id, extension | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
 extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| identifier |
1..1 | string | A unique string that identifies this instance of a symptom | |
| symptomCode |
1..1 | code | Coded description of symptom | |
| presentFlag |
1..1 | boolean | Whether the symptom is present or absent | |
| affectedPatient |
1..1 | Patient | The patient who is experiencing the symptom | |
| reporter[x] |
1..1 | The person who is reporting the symptom information | ||
| reporterPatient |
Patient | |||
| reporterRelatedPerson |
RelatedPerson | |||
| symptomDescription |
0..* | Annotation | Textual description of symptom as provided by patient or related person | |
| associatedSymptoms |
0..* | SymptomLogicalModel | Other symptoms associated with this symptom. Used when a patient or caregiver reports multiple symptoms in an encounter and a system wants to link all of them together | |
| associatedConditions |
0..* | Condition | Condition associated with this symptom. Used when a patient, caregiver, or clinician wants to link a symptom to a new or existing Condition. | |
| keyFeatures |
1..1 | BackboneElement | Key Features | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
 modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| location |
0..* | BackboneElement | Where the patient feels the symptom in the body. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| code |
1..1 | code | Coded description of the location. | |
| qualifier |
0..* | string | Qualifers of the location, eg. radiating down my leg | |
| quality |
0..* | BackboneElement | The patient's internal perception of the symptom. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| note |
0..1 | Annotation | Textual description of the symptom quality | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the quality | |
| value |
1..1 | code | Code that represents the symptom quality | |
| severity |
0..1 | BackboneElement | The intensity with which the patient experiences the symptom. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| note |
0..1 | Annotation | Textual description of the symptom severity | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment if any used to determine the severity | |
| value |
1..1 | code | Code that represents the symptom severity | |
| impact |
0..* | BackboneElement | How the symptom is affecting the patient, either emotionally, mentally, or physically. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| note |
0..1 | Annotation | Textual description of the impact | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the impact | |
| value |
1..1 | code | Code that represents the impact | |
| surroundingEvents |
0..1 | BackboneElement | Events or circumstances related to symptom onset or intensity. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| triggerOrExacerbatingFactors |
0..* | BackboneElement | ||
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| factor |
1..1 | code | Reference to the factor | |
| relatedMedication[x] |
0..* | Medication that patient suggests/reports triggers or exacerbates the symptom | ||
| relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
| alleviatingFactors |
0..* | BackboneElement | ||
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| factor |
1..1 | code | Reference to the factor | |
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
| relatedMedication[x] |
0..* | Medication that patient suggests/reports alleviating the symptom | ||
| relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| otherEvents |
0..* | code | Patient-reported actions that were occuring at time of symptom onset | |
| frequency |
0..1 | BackboneElement | How often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| quality |
0..1 | string | A qualitative expression of the frequency, eg. often | |
| quantity |
0..1 | Quantity | A quantitative expression of the frequency | |
| timing |
0..1 | BackboneElement | ||
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| speedOfOnset |
0..1 | code | Qualitative expression of how the patient perceived the rate of the symptom to become apparent. | |
| onset[x] |
0..1 | Clinically relevant time or period for the symptom since first occurence. | ||
| onsetDateTime |
dateTime | |||
| onsetPeriod |
Period | |||
| note |
0..1 | Annotation | Information given by the patient about the overall timing of the symptom. | |
| duration |
0..1 | Duration | The length of time the symptom persists in this instance of occurence. | |
| clinicalCourse |
0..1 | code | Character of symptom onset. | |
| trend |
0..1 | code | Intensity of symptom over time | |
| metadata |
1..1 | BackboneElement | Non clinical information about the symptom | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| documentationDate |
1..1 | dateTime | Date when symptom was documented in the system | |
| issued |
1..1 | dateTime | Date/time when the current version was made available. | |
| Documentation for this format | ||||
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
This view is not supported for this profile because it is of an unsupported type
Differential View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| SymptomLogicalModel |
0..* | Element | Symptom Logical Model Elements defined in Ancestors:@id, extension | |
| identifier |
1..1 | string | A unique string that identifies this instance of a symptom | |
| symptomCode |
1..1 | code | Coded description of symptom | |
| presentFlag |
1..1 | boolean | Whether the symptom is present or absent | |
| affectedPatient |
1..1 | Patient | The patient who is experiencing the symptom | |
| reporter[x] |
1..1 | The person who is reporting the symptom information | ||
| reporterPatient |
Patient | |||
| reporterRelatedPerson |
RelatedPerson | |||
| symptomDescription |
0..* | Annotation | Textual description of symptom as provided by patient or related person | |
| associatedSymptoms |
0..* | SymptomLogicalModel | Other symptoms associated with this symptom. Used when a patient or caregiver reports multiple symptoms in an encounter and a system wants to link all of them together | |
| associatedConditions |
0..* | Condition | Condition associated with this symptom. Used when a patient, caregiver, or clinician wants to link a symptom to a new or existing Condition. | |
| keyFeatures |
1..1 | BackboneElement | Key Features | |
| location |
0..* | BackboneElement | Where the patient feels the symptom in the body. | |
| code |
1..1 | code | Coded description of the location. | |
| qualifier |
0..* | string | Qualifers of the location, eg. radiating down my leg | |
| quality |
0..* | BackboneElement | The patient's internal perception of the symptom. | |
| note |
0..1 | Annotation | Textual description of the symptom quality | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the quality | |
| value |
1..1 | code | Code that represents the symptom quality | |
| severity |
0..1 | BackboneElement | The intensity with which the patient experiences the symptom. | |
| note |
0..1 | Annotation | Textual description of the symptom severity | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment if any used to determine the severity | |
| value |
1..1 | code | Code that represents the symptom severity | |
| impact |
0..* | BackboneElement | How the symptom is affecting the patient, either emotionally, mentally, or physically. | |
| note |
0..1 | Annotation | Textual description of the impact | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the impact | |
| value |
1..1 | code | Code that represents the impact | |
| surroundingEvents |
0..1 | BackboneElement | Events or circumstances related to symptom onset or intensity. | |
| triggerOrExacerbatingFactors |
0..* | BackboneElement | ||
| factor |
1..1 | code | Reference to the factor | |
| relatedMedication[x] |
0..* | Medication that patient suggests/reports triggers or exacerbates the symptom | ||
| relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
| alleviatingFactors |
0..* | BackboneElement | ||
| factor |
1..1 | code | Reference to the factor | |
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
| relatedMedication[x] |
0..* | Medication that patient suggests/reports alleviating the symptom | ||
| relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| otherEvents |
0..* | code | Patient-reported actions that were occuring at time of symptom onset | |
| frequency |
0..1 | BackboneElement | How often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week. | |
| quality |
0..1 | string | A qualitative expression of the frequency, eg. often | |
| quantity |
0..1 | Quantity | A quantitative expression of the frequency | |
| timing |
0..1 | BackboneElement | ||
| speedOfOnset |
0..1 | code | Qualitative expression of how the patient perceived the rate of the symptom to become apparent. | |
| onset[x] |
0..1 | Clinically relevant time or period for the symptom since first occurence. | ||
| onsetDateTime |
dateTime | |||
| onsetPeriod |
Period | |||
| note |
0..1 | Annotation | Information given by the patient about the overall timing of the symptom. | |
| duration |
0..1 | Duration | The length of time the symptom persists in this instance of occurence. | |
| clinicalCourse |
0..1 | code | Character of symptom onset. | |
| trend |
0..1 | code | Intensity of symptom over time | |
| metadata |
1..1 | BackboneElement | Non clinical information about the symptom | |
| documentationDate |
1..1 | dateTime | Date when symptom was documented in the system | |
| issued |
1..1 | dateTime | Date/time when the current version was made available. | |
| Documentation for this format | ||||
Snapshot ViewView
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| SymptomLogicalModel |
0..* | Element | Symptom Logical Model Elements defined in Ancestors:@id, extension | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| identifier |
1..1 | string | A unique string that identifies this instance of a symptom | |
| symptomCode |
1..1 | code | Coded description of symptom | |
| presentFlag |
1..1 | boolean | Whether the symptom is present or absent | |
| affectedPatient |
1..1 | Patient | The patient who is experiencing the symptom | |
| reporter[x] |
1..1 | The person who is reporting the symptom information | ||
| reporterPatient |
Patient | |||
| reporterRelatedPerson |
RelatedPerson | |||
| symptomDescription |
0..* | Annotation | Textual description of symptom as provided by patient or related person | |
| associatedSymptoms |
0..* | SymptomLogicalModel | Other symptoms associated with this symptom. Used when a patient or caregiver reports multiple symptoms in an encounter and a system wants to link all of them together | |
| associatedConditions |
0..* | Condition | Condition associated with this symptom. Used when a patient, caregiver, or clinician wants to link a symptom to a new or existing Condition. | |
| keyFeatures |
1..1 | BackboneElement | Key Features | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| location |
0..* | BackboneElement | Where the patient feels the symptom in the body. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| code |
1..1 | code | Coded description of the location. | |
| qualifier |
0..* | string | Qualifers of the location, eg. radiating down my leg | |
| quality |
0..* | BackboneElement | The patient's internal perception of the symptom. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| note |
0..1 | Annotation | Textual description of the symptom quality | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the quality | |
| value |
1..1 | code | Code that represents the symptom quality | |
| severity |
0..1 | BackboneElement | The intensity with which the patient experiences the symptom. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| note |
0..1 | Annotation | Textual description of the symptom severity | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment if any used to determine the severity | |
| value |
1..1 | code | Code that represents the symptom severity | |
| impact |
0..* | BackboneElement | How the symptom is affecting the patient, either emotionally, mentally, or physically. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| note |
0..1 | Annotation | Textual description of the impact | |
| scaleCode |
0..1 | code | Code for the specific scale or assessment (if any) used to determine the impact | |
| value |
1..1 | code | Code that represents the impact | |
| surroundingEvents |
0..1 | BackboneElement | Events or circumstances related to symptom onset or intensity. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| triggerOrExacerbatingFactors |
0..* | BackboneElement | ||
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| factor |
1..1 | code | Reference to the factor | |
| relatedMedication[x] |
0..* | Medication that patient suggests/reports triggers or exacerbates the symptom | ||
| relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
| alleviatingFactors |
0..* | BackboneElement | ||
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| factor |
1..1 | code | Reference to the factor | |
| note |
0..1 | Annotation | Information given about actions, conditions, events, or other factors | |
| relatedMedication[x] |
0..* | Medication that patient suggests/reports alleviating the symptom | ||
| relatedMedicationMedicationStatement |
MedicationStatement | |||
| relatedMedicationMedicationAdministration |
MedicationAdministration | |||
| otherEvents |
0..* | code | Patient-reported actions that were occuring at time of symptom onset | |
| frequency |
0..1 | BackboneElement | How often the patient experiences the symptom i.e. expressed as 3x/day or 2x/week. | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| quality |
0..1 | string | A qualitative expression of the frequency, eg. often | |
| quantity |
0..1 | Quantity | A quantitative expression of the frequency | |
| timing |
0..1 | BackboneElement | ||
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| speedOfOnset |
0..1 | code | Qualitative expression of how the patient perceived the rate of the symptom to become apparent. | |
| onset[x] |
0..1 | Clinically relevant time or period for the symptom since first occurence. | ||
| onsetDateTime |
dateTime | |||
| onsetPeriod |
Period | |||
| note |
0..1 | Annotation | Information given by the patient about the overall timing of the symptom. | |
| duration |
0..1 | Duration | The length of time the symptom persists in this instance of occurence. | |
| clinicalCourse |
0..1 | code | Character of symptom onset. | |
| trend |
0..1 | code | Intensity of symptom over time | |
| metadata |
1..1 | BackboneElement | Non clinical information about the symptom | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| documentationDate |
1..1 | dateTime | Date when symptom was documented in the system | |
| issued |
1..1 | dateTime | Date/time when the current version was made available. | |
| Documentation for this format | ||||
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
openEHR View
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IG © 2025+ HL7 International / Clinical Interoperability Council.
Package hl7.fhir.uv.symptoms#1.0.0 based on FHIR 4.0.1.
Generated
2026-03-31
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QA Report
| Version History |
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