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Allergy

The SHR Allergy domain contains definitions for statements dealing with substance-related risks, including allergies and intolerances.

AdverseReaction

An instance of a negative response to the allergy or intolerance. C0559546

AllergenIrritant optional A substance that causes an allergic reaction or irritation.
Manifestation optional A sign or symptom of an underlying condition.
Details optional An text note containing additional details, explanation, description, comment, or summarization. Details can discuss, support, explain changes to, or dispute information.
OccurrenceTime optional The point in time in which something happens.
Severity must be from http://hl7.org/fhir/ValueSet/reaction-event-severity optional Degree of harshness or extent of a symptom, disorder, or condition.
RouteIntoBody optional The way a substance enters an organism after contact, particularly, the route of drug administration.

AllergenIrritant

A substance that causes an allergic reaction or irritation.

Value:  CodeableConcept must be from AllergenIrritantVS A set of codes drawn from different coding systems, representing the same concept.

AllergyIntolerance [Entry]

A finding related to the presence or absence of an individual's risk or sensitivity to a substance or class of substances. A finding can be taken as tantamount to a representation of an allergic condition, allowing it to be tracked over time. Propensity to adverse reactions (420134006)

Based On Finding

AllergenIrritant required A substance that causes an allergic reaction or irritation.
Subject required The person or thing that this entry relates to, usually the Person of Record. However, not all entries have health information specifically about the patient, but in different contexts, could refer to a fetus, family member (living or dead), device, location, organization, finding, condition, or intervention.
ClinicalStatus must be from http://hl7.org/fhir/ValueSet/allergy-clinical-status optional A flag indicating whether the condition is active or inactive, recurring, in remission, or resolved (as of the last update of the Condition).
SubstanceCategory must be from http://hl7.org/fhir/ValueSet/allergy-intolerance-category 0 or more Categorization of the risk substance as a food, drug, or environmental agent. For difficult-to-classify substances, one can leave this field empty or choose the most typical category.
VerificationStatus must be from http://hl7.org/fhir/ValueSet/allergy-verification-status required Whether an assessment has been confirmed by testing or observation.
Type must be from http://hl7.org/fhir/ValueSet/allergy-intolerance-type optional The most specific code (lowest level term) describing the kind or sort of thing being represented.
Criticality must be from http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality optional The potential clinical harm associated with a condition. When the worst case result is assessed to have a life-threatening or organ system threatening potential, it is considered to be of high criticality.
AdverseReaction 0 or more An instance of a negative response to the allergy or intolerance.
Onset optional The beginning or first appearance of a mental or physical disorder.
Abatement optional The end, remission or resolution.
MostRecentOccurrenceTime optional The time of the last or latest of a series of events.
FocalSubject optional For use when FHIR's subject does not allow the desired type of Subject in the Finding.Subject field.
FindingMethod optional The technique used to create the finding, for example, the specific imaging technical or assessment vehicle.
FindingStatus optional Indicates whether the finding is preliminary, amended, final, etc..
Evidence 0 or more A symptom, observation, or other item, for example, a radiology report, that serves as evidence for the current assessment.
RelatedEncounter optional If content was generated during a patient encounter, related encounter is the encounter where the information was gained.
Author optional The person or organization who created the entry and is responsible for (and may certify) the content.
Informant optional The person or entity that provided the information in the entry, as distinct from who created the entry, e.g. the subject (patient), medical professional, family member, device or software program.

Manifestation

A sign or symptom of an underlying condition. C1280464

Value:  CodeableConcept must be from ManifestationVS A set of codes drawn from different coding systems, representing the same concept.

MostRecentOccurrenceTime

The time of the last or latest of a series of events.

Value:  dateTime

NoAllergyToSubstance [Entry]

Used to record that a particular substance or class of substances does not pose a known elevated risk to the subject. NoAllergyToSubstance is not an assertion because the value (a code representing a substance) does not carry the complete meaning. C4508987

Based On QuestionAnswer

Value:  CodeableConcept must be from AllergenIrritantVS A set of codes drawn from different coding systems, representing the same concept.
ObservationCode is No Allergy (C4508987) required A code that represents what the finding concerns, for example, the subject's height, blood pressure, disease status, wound dimensions, diabetes risk, etc. Although named ObservationCode, in different contexts the same attribute might be more naturally referred to as a property, observable, or test code. In assertions (observations without an explicit question), the observation code is defaulted to a value representing 'assertion'.
Specimen not used Sample for analysis
Device not used A specific durable physical device used in diagnosis or treatment. The value is the coding for a type of device, for example, a CPAP machine. The same device might be used on multiple patients.
ReferenceRange not used The usual or acceptable range for a test result.
ValueAbsentReason optional Provides a reason why the value of the observation is missing, if it is expected (some observations are not expected to have a value).
ClinicallyRelevantTime optional The time or time period that the finding addresses. The clinically relevant time is not necessarily when the information is gathered or when a test is carried out, but for example, when a specimen was collected, or the time period referred to by the question. Use a TimePeriod for a measurement or specimen collection continued over a significant period of time (e.g. 24 hour Urine Sodium).
FindingStatus required Indicates whether the finding is preliminary, amended, final, etc..
Category from http://hl7.org/fhir/ValueSet/observation-category (if covered) 0 or more A class or division of people or things having particular shared characteristics
BodySite optional A location or structure in the body, including tissues, regions, cavities, and spaces, for example, right elbow, or left ventricle of the heart.
ChangeFlag optional Indicator of significant change (delta) from the last or previous measurement.
Details optional An text note containing additional details, explanation, description, comment, or summarization. Details can discuss, support, explain changes to, or dispute information.
Interpretation optional A clinical interpretation of a finding.
ObservationQualifier 0 or more A description of the conditions or context of an observation, for example, under sedation, fasting or post-exercise. Body position and body site are also qualifiers, but handled separately. A qualifier cannot modify the measurement type; for example, a fasting blood sugar is still a blood sugar.
Components optional Components are parts of the parent observation. Component observations share the same attributes (such as Specimen) as the primary observation and are not separable. However, the reference range may be different for each component observation.
Subject optional The person or thing that this entry relates to, usually the Person of Record. However, not all entries have health information specifically about the patient, but in different contexts, could refer to a fetus, family member (living or dead), device, location, organization, finding, condition, or intervention.
FocalSubject optional For use when FHIR's subject does not allow the desired type of Subject in the Finding.Subject field.
FindingMethod optional The technique used to create the finding, for example, the specific imaging technical or assessment vehicle.
Evidence 0 or more A symptom, observation, or other item, for example, a radiology report, that serves as evidence for the current assessment.
RelatedEncounter optional If content was generated during a patient encounter, related encounter is the encounter where the information was gained.
Author optional The person or organization who created the entry and is responsible for (and may certify) the content.
Informant optional The person or entity that provided the information in the entry, as distinct from who created the entry, e.g. the subject (patient), medical professional, family member, device or software program.

NoKnownAllergy [Entry]

Express no known allergies to broad classes: anything, animals, drugs, foods, or environmental factors. NoKnownAllergy is an assertion because the code, such as 'No known food allergy' carries the complete meaning. C0262580

Based On Assertion

Value:  CodeableConcept must be from NoKnownAllergyVS A set of codes drawn from different coding systems, representing the same concept.
ObservationCode is Not applicable (385432009) required A code that represents what the finding concerns, for example, the subject's height, blood pressure, disease status, wound dimensions, diabetes risk, etc. Although named ObservationCode, in different contexts the same attribute might be more naturally referred to as a property, observable, or test code. In assertions (observations without an explicit question), the observation code is defaulted to a value representing 'assertion'.
ValueAbsentReason not used Provides a reason why the value of the observation is missing, if it is expected (some observations are not expected to have a value).
Specimen not used Sample for analysis
Device not used A specific durable physical device used in diagnosis or treatment. The value is the coding for a type of device, for example, a CPAP machine. The same device might be used on multiple patients.
ReferenceRange not used The usual or acceptable range for a test result.
NegationFlag optional A flag that indicates the meaning to be conveyed is the logical opposite of the current assertion. The assertion is negated only when the NegationIndicator is true. If absent or false, the assertion is not negated.
ClinicallyRelevantTime optional The time or time period that the finding addresses. The clinically relevant time is not necessarily when the information is gathered or when a test is carried out, but for example, when a specimen was collected, or the time period referred to by the question. Use a TimePeriod for a measurement or specimen collection continued over a significant period of time (e.g. 24 hour Urine Sodium).
FindingStatus required Indicates whether the finding is preliminary, amended, final, etc..
Category from http://hl7.org/fhir/ValueSet/observation-category (if covered) 0 or more A class or division of people or things having particular shared characteristics
BodySite optional A location or structure in the body, including tissues, regions, cavities, and spaces, for example, right elbow, or left ventricle of the heart.
ChangeFlag optional Indicator of significant change (delta) from the last or previous measurement.
Details optional An text note containing additional details, explanation, description, comment, or summarization. Details can discuss, support, explain changes to, or dispute information.
Interpretation optional A clinical interpretation of a finding.
ObservationQualifier 0 or more A description of the conditions or context of an observation, for example, under sedation, fasting or post-exercise. Body position and body site are also qualifiers, but handled separately. A qualifier cannot modify the measurement type; for example, a fasting blood sugar is still a blood sugar.
Components optional Components are parts of the parent observation. Component observations share the same attributes (such as Specimen) as the primary observation and are not separable. However, the reference range may be different for each component observation.
Subject optional The person or thing that this entry relates to, usually the Person of Record. However, not all entries have health information specifically about the patient, but in different contexts, could refer to a fetus, family member (living or dead), device, location, organization, finding, condition, or intervention.
FocalSubject optional For use when FHIR's subject does not allow the desired type of Subject in the Finding.Subject field.
FindingMethod optional The technique used to create the finding, for example, the specific imaging technical or assessment vehicle.
Evidence 0 or more A symptom, observation, or other item, for example, a radiology report, that serves as evidence for the current assessment.
RelatedEncounter optional If content was generated during a patient encounter, related encounter is the encounter where the information was gained.
Author optional The person or organization who created the entry and is responsible for (and may certify) the content.
Informant optional The person or entity that provided the information in the entry, as distinct from who created the entry, e.g. the subject (patient), medical professional, family member, device or software program.

SubstanceCategory

Categorization of the risk substance as a food, drug, or environmental agent. For difficult-to-classify substances, one can leave this field empty or choose the most typical category.

Value:  code

VerificationStatus

Whether an assessment has been confirmed by testing or observation.

Value:  code