This page is part of the FHIR Specification (v1.0.0: DSTU 2 Ballot 3). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3 R2
A typical Food Allergy (id = "example")
<AllergyIntolerance xmlns="http://hl7.org/fhir"> <id value="example"/> <!-- an identifier used for this Adverse Reaction Risk --> <text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: example</p><p><b>identifier</b>: 49476534</p><p><b>recordedDate</b>: 09/10/2014 2:58:00 PM</p><p><b>recorder</b>: <a>Practitioner/example</a></p><p><b>patient</b>: <a>Patient/example</a></p><p><b>substance</b>: Cashew nuts <span>(Details : {SNOMED CT code '227493005' = '227493005', given as 'Cashew nuts'})</span></p><p><b>status</b>: confirmed</p><p><b>criticality</b>: CRITH</p><p><b>type</b>: allergy</p><p><b>category</b>: food</p><p><b>lastOccurence</b>: 01/06/2012</p><blockquote><p><b>reaction</b></p><p><b>substance</b>: cashew nut allergenic extract Injectable Product <span>(Details : {RxNorm code 'C3214954' = '??', given as 'cashew nut allergenic extract Injectable Product'})</span></p><p><b>manifestation</b>: Anaphylactic reaction <span>(Details : {SNOMED CT code '39579001' = '39579001', given as 'Anaphylactic reaction'})</span></p><p><b>description</b>: Challenge Protocol. Severe Reaction to 1/8 cashew. Epinephrine administered</p><p><b>onset</b>: 12/06/2012</p><p><b>severity</b>: severe</p></blockquote><blockquote><p><b>reaction</b></p><p><b>certainty</b>: likely</p><p><b>manifestation</b>: Urticaria <span>(Details : {SNOMED CT code '64305001' = '64305001', given as 'Urticaria'})</span></p><p><b>onset</b>: 01/01/2004</p><p><b>severity</b>: moderate</p></blockquote></div></text><identifier> <system value="http://acme.com/ids/patients/risks"/> <value value="49476534"/> </identifier> <!-- the date that this entry was recorded --> <recordedDate value="2014-10-09T14:58:00+11:00"/> <!-- who made the record / last updated it --> <recorder> <reference value="Practitioner/example"/> </recorder> <!-- the patient that actually has the risk of adverse reaction --> <patient> <reference value="Patient/example"/> </patient> <!-- subtance - either coded, or text. A few times, there's a full description of a complex substance - in these caes, use the extension [url] to refer to a Substance resource --> <substance> <coding> <system value="http://snomed.info/sct"/> <code value="227493005"/> <display value="Cashew nuts"/> </coding> </substance> <!-- this individual has had several reactions, and there is no question that the allergy is real and serious --> <status value="confirmed"/> <criticality value="CRITH"/> <!-- note: it's often unknown whether an allergy is mediated by an immune response, and not as significant as once thought --> <type value="allergy"/> <!-- this categorisation is implied by "cashew nut" and therefore basically redundant, but many systems collect this field anyway, since it's either useful when the substance is not coded, or it's quicker to sort/filter on than using terminology based reasoning --> <category value="food"/> <!-- last happened June 2012. Typically, systems either track lastOccurence, or a list of events. --> <lastOccurence value="2012-06"/> <!-- past events. There's no claim that this is all the events, and that should not be assumed --> <reaction> <!-- It's possible to list specific things to which the patient responded, e.g. chocolate (that happened to contain cashew nuts). This event has such a specific substance. Note that systems should ensure that what goes in here does not conflict with the substance above, and systems processing the data can be sure that what is here does not contravene the substance above --> <substance> <coding> <system value="http://www.nlm.nih.gov/research/umls/rxnorm"/> <code value="C3214954"/> <display value="cashew nut allergenic extract Injectable Product"/> </coding> </substance> <manifestation> <coding> <system value="http://snomed.info/sct"/> <code value="39579001"/> <display value="Anaphylactic reaction"/> </coding> </manifestation> <description value="Challenge Protocol. Severe Reaction to 1/8 cashew. Epinephrine administered"/> <onset value="2012-06-12"/> <severity value="severe"/> </reaction> <reaction> <!-- this was the first occurence --> <certainty value="likely"/> <manifestation> <coding> <system value="http://snomed.info/sct"/> <code value="64305001"/> <display value="Urticaria"/> </coding> </manifestation> <onset value="2004"/> <severity value="moderate"/> </reaction> </AllergyIntolerance>
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.