---
type: "search-params"
title: "Immunization Search Parameters"
resource: "Immunization"
---
# Immunization Search Parameters

<a id="date"></a>

## date
**Description:** Vaccination  (non)-Administration Date

**Type:** date

**Expression:** (Immunization.occurrence.ofType(dateTime))

**Path:** Immunization.occurrenceDateTime

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-date


<a id="encounter"></a>

## encounter
**Description:** The Encounter this Immunization was part of

**Type:** reference

**Expression:** Immunization.encounter

**Path:** Immunization.encounter

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-encounter


<a id="identifier"></a>

## identifier
**Description:** Business identifier

**Type:** token

**Expression:** Immunization.identifier

**Path:** Immunization.identifier

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-identifier


<a id="location"></a>

## location
**Description:** The service delivery location or facility in which the vaccine was / was to be administered

**Type:** reference

**Expression:** Immunization.location

**Path:** Immunization.location

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-location


<a id="lot-number"></a>

## lot-number
**Description:** Vaccine Lot Number

**Type:** string

**Expression:** Immunization.lotNumber

**Path:** Immunization.lotNumber

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-lot-number


<a id="manufacturer"></a>

## manufacturer
**Description:** Vaccine Manufacturer

**Type:** reference

**Expression:** Immunization.manufacturer.reference

**Path:** Immunization.manufacturer.reference

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-manufacturer


<a id="patient"></a>

## patient
**Description:** The patient for the vaccination record

**Type:** reference

**Expression:** Immunization.patient

**Path:** Immunization.patient

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-patient


<a id="performer"></a>

## performer
**Description:** The practitioner, individual or organization who played a role in the vaccination

**Type:** reference

**Expression:** Immunization.performer.actor

**Path:** Immunization.performer.actor

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-performer


<a id="reaction"></a>

## reaction
**Description:** Additional information on reaction

**Type:** reference

**Expression:** Immunization.reaction.manifestation.reference

**Path:** Immunization.reaction.manifestation.reference

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-reaction


<a id="reaction-date"></a>

## reaction-date
**Description:** When reaction started

**Type:** date

**Expression:** Immunization.reaction.date

**Path:** Immunization.reaction.date

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-reaction-date


<a id="reason-code"></a>

## reason-code
**Description:** Reason why the vaccine was administered

**Type:** token

**Expression:** Immunization.reason.concept

**Path:** Immunization.reason.concept

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-reason-code


<a id="reason-reference"></a>

## reason-reference
**Description:** Reference to a resource (by instance)

**Type:** reference

**Expression:** Immunization.reason.reference

**Path:** Immunization.reason.reference

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-reason-reference


<a id="series"></a>

## series
**Description:** The series being followed by the provider

**Type:** string

**Expression:** Immunization.protocolApplied.series

**Path:** Immunization.protocolApplied.series

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-series


<a id="status"></a>

## status
**Description:** Immunization event status

**Type:** token

**Expression:** Immunization.status

**Path:** Immunization.status

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-status


<a id="status-reason"></a>

## status-reason
**Description:** Reason why the vaccine was not administered

**Type:** token

**Expression:** Immunization.statusReason

**Path:** Immunization.statusReason

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-status-reason


<a id="target-disease"></a>

## target-disease
**Description:** The target disease the dose is being administered against

**Type:** token

**Expression:** Immunization.protocolApplied.targetDisease

**Path:** Immunization.protocolApplied.targetDisease

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-target-disease


<a id="vaccine-code"></a>

## vaccine-code
**Description:** Vaccine Product Administered

**Type:** token

**Expression:** Immunization.vaccineCode

**Path:** Immunization.vaccineCode

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Immunization-vaccine-code