<?xml version="1.0" encoding="UTF-8"?>
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/*
  Copyright (c) 2011+, HL7, Inc.
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  Redistribution and use in source and binary forms, with or without modification, 
  are permitted provided that the following conditions are met:
  
   * Redistributions of source code must retain the above copyright notice, this 
     list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright notice, 
     this list of conditions and the following disclaimer in the documentation 
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     endorse or promote products derived from this software without specific 
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  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
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  Generated on Mon, Mar 30, 2026 16:23+0000 for FHIR v6.0.0-ballot4 

  Note: the schemas &amp; schematrons do not contain all of the rules about what makes resources
  valid. Implementers will still need to be familiar with the content of the specification and with
  any profiles that apply to the resources in order to make a conformant implementation.

-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://hl7.org/fhir" xmlns:xhtml="http://www.w3.org/1999/xhtml" targetNamespace="http://hl7.org/fhir" elementFormDefault="qualified" version="1.0">
  <xs:include schemaLocation="fhir-base.xsd"/>
  <xs:element name="Immunization" type="Immunization">
    <xs:annotation>
      <xs:documentation xml:lang="en">Describes the event of a patient being administered a vaccine or a record of an immunization as reported by a patient, a clinician or another party.</xs:documentation>
    </xs:annotation>
  </xs:element>
  <xs:complexType name="Immunization">
    <xs:annotation>
      <xs:documentation xml:lang="en">Describes the event of a patient being administered a vaccine or a record of an immunization as reported by a patient, a clinician or another party.</xs:documentation>
      <xs:documentation xml:lang="en">If the element is present, it must have either a @value, an @id, or extensions</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="DomainResource">
        <xs:sequence>
          <xs:element name="identifier" minOccurs="0" maxOccurs="unbounded" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">A unique identifier assigned to this immunization record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="basedOn" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">A plan, order or recommendation fulfilled in whole or in part by this immunization.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="status" minOccurs="1" maxOccurs="1" type="ImmunizationStatusCodes">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the current status of the immunization event.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="statusReason" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the reason the immunization event was **not performed** or was **entered in error**.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="vaccineCode" minOccurs="1" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Vaccine that was administered or was to be administered.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="administeredProduct" minOccurs="0" maxOccurs="1" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">An indication of which product was administered to the patient. This is typically a more detailed representation of the concept conveyed by the vaccineCode data element. If a Medication resource is referenced, it may be to a stand-alone resource or a contained resource within the Immunization resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="manufacturer" minOccurs="0" maxOccurs="1" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Name of vaccine manufacturer.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="lotNumber" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Lot number of the  vaccine product.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="expirationDate" minOccurs="0" maxOccurs="1" type="date">
            <xs:annotation>
              <xs:documentation xml:lang="en">Date vaccine batch expires.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="patient" minOccurs="1" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The patient who either received or did not receive the immunization.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="encounter" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The visit or admission or other contact between patient and health care provider the immunization was performed as part of.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="supportingInformation" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Additional information that is relevant to the immunization (e.g. for a vaccine recipient who is pregnant, the gestational age of the fetus). The reason why a vaccine was given (e.g. occupation, underlying medical condition) should be conveyed in Immunization.reason, not as supporting information. The reason why a vaccine was not given (e.g. contraindication) should be conveyed in Immunization.statusReason, not as supporting information.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="1" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">Date vaccine administered or was to be administered.</xs:documentation>
            </xs:annotation>
            <xs:element name="occurrenceDateTime" type="dateTime"/>
            <xs:element name="occurrenceString" type="string"/>
          </xs:choice>
          <xs:element name="primarySource" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates whether the data contained in the resource was captured by the individual/organization which was responsible for the administration of the vaccine rather than as 'secondary reported' data documented by a third party. A value of 'true' means this data originated with the individual/organization which was responsible for the administration of the vaccine.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="informationSource" minOccurs="0" maxOccurs="1" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Typically the source of the data when the report of the immunization event is not based on information from the person who administered the vaccine.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="location" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The service delivery location where the vaccine administration occurred.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="site" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Body site where vaccine was administered.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="route" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The path by which the vaccine product is taken into the body.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="doseQuantity" minOccurs="0" maxOccurs="1" type="Quantity">
            <xs:annotation>
              <xs:documentation xml:lang="en">The quantity of vaccine product that was administered.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="performer" type="Immunization.Performer" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates who performed the immunization event.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="note" minOccurs="0" maxOccurs="unbounded" type="Annotation">
            <xs:annotation>
              <xs:documentation xml:lang="en">Extra information about the immunization that is not conveyed by the other attributes.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reason" minOccurs="0" maxOccurs="unbounded" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Describes why the immunization occurred in coded or textual form, or indicates another resource (Condition, Observation or DiagnosticReport) whose existence justifies this immunization.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="isSubpotent" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indication if a dose is considered to be subpotent. By default, a dose should be considered to be potent.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="subpotentReason" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Reason why a dose is considered to be subpotent.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="programEligibility" type="Immunization.ProgramEligibility" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates a patient's eligibility for a funding program.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="fundingSource" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the source of the vaccine actually administered. This may be different than the patient eligibility (e.g. the patient may be eligible for a publicly purchased vaccine but due to inventory issues, vaccine purchased with private funds was actually administered).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reaction" type="Immunization.Reaction" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Categorical data indicating that an adverse event is associated in time to an immunization.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="protocolApplied" type="Immunization.ProtocolApplied" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The protocol (set of recommendations) being followed by the provider who administered the dose.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Immunization.Performer">
    <xs:annotation>
      <xs:documentation xml:lang="en">Describes the event of a patient being administered a vaccine or a record of an immunization as reported by a patient, a clinician or another party.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="function" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Describes the function played by the performer in the immunization event (e.g. ordering provider, administering provider, etc.).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="actor" minOccurs="1" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The practitioner or organization who performed the action.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Immunization.ProgramEligibility">
    <xs:annotation>
      <xs:documentation xml:lang="en">Describes the event of a patient being administered a vaccine or a record of an immunization as reported by a patient, a clinician or another party.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="program" minOccurs="1" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates which program the patient had their eligibility evaluated for.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="programStatus" minOccurs="1" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the patient's eligibility status for a specific payment program.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Immunization.Reaction">
    <xs:annotation>
      <xs:documentation xml:lang="en">Describes the event of a patient being administered a vaccine or a record of an immunization as reported by a patient, a clinician or another party.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="date" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">Date of reaction to the immunization.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="manifestation" minOccurs="0" maxOccurs="1" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Details of the reaction.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reported" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Self-reported indicator.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Immunization.ProtocolApplied">
    <xs:annotation>
      <xs:documentation xml:lang="en">Describes the event of a patient being administered a vaccine or a record of an immunization as reported by a patient, a clinician or another party.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="series" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">One possible path to achieve presumed immunity against a disease - within the context of an authority.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="authority" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the authority who published the protocol (e.g. ACIP) that is being followed.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="targetDisease" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The vaccine preventable disease the dose is being administered against.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="doseNumber" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Nominal position in a series as intended by the practitioner administering the dose.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="seriesDoses" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The recommended number of doses to achieve immunity as intended by the practitioner administering the dose.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:simpleType name="ImmunizationStatusCodesEnum">
    <xs:restriction base="code-primitive">
      <xs:enumeration value="completed">
        <xs:annotation>
          <xs:documentation xml:lang="en">Completed</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="entered-in-error">
        <xs:annotation>
          <xs:documentation xml:lang="en">Entered in Error</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="not-done">
        <xs:annotation>
          <xs:documentation xml:lang="en">Not Done</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:complexType name="ImmunizationStatusCodes">
    <xs:annotation>
      <xs:documentation xml:lang="en">A set of codes indicating the current status of an Immunization.</xs:documentation>
      <xs:documentation xml:lang="en">If the element is present, it must have either a @value, an @id, or extensions</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="Element">
        <xs:attribute name="value" type="ImmunizationStatusCodesEnum" use="optional"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:schema>
