An ENTRY containing a collection of data items required to represent a diagnosis of a known allergy or adverse reaction event¹. Comprises a single coded Allergy or Adverse Reaction Event and optionally may contain:

• a textual description of the event
• any coded representations of findings or observations that led to this event being identified.

If a patient's record has an Allergy or Adverse Reaction Event entry then they should, in most cases also have one corresponding Allergy or Adverse Reaction Propensity entry. It is a clinical judgement as to whether this occurs. It may be reasonable to not have a corresponding allergy propensity entry if the allergy event is not certain⁴. An Allergy or Adverse Reaction Event entry shall not be used to populate the patient's Allergy and Adverse Reaction List^1,4. Incorporates requirements from the following sources:

• NPfIT MIM 7.2.02 AllergicOrAdverseReactionEvent template (COCD_TP146022UK04)
• Section 3.6.3 of NPFIT-NCR-DES-0135.07 NHS Care Record Elements
• Section 2 of NPFIT-NCR-DES-0422.06 Representation of Commonly Used Concepts in the Care Record
• Guidance given in NPFIT-FNT-TO-SCG-0001.06 SCG Guidance on the Representation of Allergies and Adverse Reaction Information Using NHS Message Templates

^1: NPFIT-FNT-TO-DPM-0725.06 - NPfIT Message Implementation Manual 7.2.02 ^4: NPFIT-FNT-TO-SCG-0001.06 SCG Guidance on the Representation of Allergies and Adverse Reaction Information Using NHS Message Templates

Attributes

Name	Data type	Occurs	Description	Value Constraints
name	SC	1..1	The name, expressed as a coded value or as plain text, specifies the clinical or administrative concept to which this EHR node corresponds, as labelled in the EHR system in which it was first committed.	value Literal value(s): ENTRY
rc_id	II	1..1	The globally-unique identifier by which this node in the EHR hierarchy is referenced in the EHR system to which the data were first committed. This identifier shall be retained by the EHR Recipient and re-used whenever this RECORD_COMPONENT is subsequently included in another EHR_EXTRACT.
synthesised	BL	1..1	This attribute value shall be TRUE if this RECORD_COMPONENT has been created in order to comply with this standard , but this point in the EHR hierarchy has no corresponding node in the EHR from which it was extracted.	value Default value: false
uncertainty_expressed	BL	1..1	This attribute is set to TRUE to advise the EHR Recipient that this ENTRY contains data that indicates some degree of uncertainty, and that care should be taken when using these data within automated processes and systems.	nullFlavor Literal value(s): NA

Contained ELEMENTs

Graphical Representation

Name	ELEMENT Class	Occurs	Description
items	GenericFindingObservation	0..*
items	ProductOrSubstanceRelatedActivity	0..*
items	AllergyOrAdverseReactionPropensity	0..*
items	Text	0..*
items	GenericPropertyObservation	0..*
items	GenericAdmissionEvent	0..*
items	AllergyOrAdverseReactionEvent	1

Participations

Subject of Information

Name	Class	Occurs	Description
	SubjectOfInformationChoice	0..1	Represents a choice of RELATED_PARTY classes used to describe the participation of a ROLE class in an ENTRY. The ROLE class shall participate as the Subject of Information.

Information Provider

Name	Class	Occurs	Description
	InformationProviderChoice	0..1	Represents a choice of FUNCTIONAL_ROLE classes used to describe the participation of a ROLE class in an ENTRY. The ROLE class shall participate as an Information Provider (a.k.a. Informant).

Other Participations

Name	Class	Occurs	Description
	OtherParticipationsChoice	0..*	Represents a choice of FUNCTIONAL_ROLE classes used to describe the participation of a ROLE class in a COMPOSITION or an ENTRY. The ROLE class shall participate as follows: as a non-specific 'other participation'. This option is applicable when it is not relevant to explicitly state the participation type or when the source system is unable to support further specification of the participation type. as any other explicitly stated participation type from the relevant vocabulary. This option shall not be used to describe a participation type of Information Provider (a.k.a. Informant), Composer (a.k.a. Author), or Attester (a.k.a Verifier).

Reference Model Type

ENTRY