# US Quality Core Immunization - 2026 US Quality Core Implementation Guide v0.5.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **US Quality Core Immunization**

## Resource Profile: US Quality Core Immunization 

| | |
| :--- | :--- |
| *Official URL*:http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-immunization | *Version*:0.5.0 |
| Active as of 2026-05-15 | *Computable Name*:USQualityCoreImmunization |

 
Profile of Immunization for decision support/quality metrics. Defines the core set of elements and extensions for quality rule and measure authors. 

**Usage**
The following example illustrates the use of the Immunization profile:

```
define "Polio Immunizations":
  ["Immunization": "Inactivated Polio Vaccine (IPV)"] PolioVaccination
    where PolioVaccination.status = 'completed'
```

  See the [patterns](patterns.md) page for implementation and usage patterns.  

### Examples

 

| |
| :--- |
| [Example of Influenza immunization shot](Immunization-example.md) |

 

**USCDI+ Quality Elements:**

* status: (USCDI+ Quality) (USCDI) completed | entered-in-error
* statusReason: (USCDI+ Quality) (USCDI) Reason not done
* occurrence[x]: (USCDI+ Quality) (USCDI) Vaccine administration date
* primarySource: (USCDI+ Quality) (USCDI) Indicates context the data was recorded in

**Usages:**

* Refer to this Profile: [US Quality Core AdverseEvent](StructureDefinition-us-quality-core-adverseevent.md), [US Quality Core ImmunizationEvaluation](StructureDefinition-us-quality-core-immunizationevaluation.md) and [US Quality Core ImmunizationRecommendation](StructureDefinition-us-quality-core-immunizationrecommendation.md)
* Examples for this Profile: [Immunization/example](Immunization-example.md) and [Immunization/statusreason-example](Immunization-statusreason-example.md)
* CapabilityStatements using this Profile: [US Quality Core Client CapabilityStatement](CapabilityStatement-us-quality-core-client.md) and [US Quality Core Server CapabilityStatement](CapabilityStatement-us-quality-core-server.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/resource/fhir.onc.us-quality-core|current/StructureDefinition/StructureDefinition-us-quality-core-immunization.json)

### Formal Views of Profile Content

 [Description of Profiles, Differentials, Snapshots and how the different presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-us-quality-core-immunization.csv), [Excel](StructureDefinition-us-quality-core-immunization.xlsx), [Schematron](StructureDefinition-us-quality-core-immunization.sch) 



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "us-quality-core-immunization",
  "url" : "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-immunization",
  "version" : "0.5.0",
  "name" : "USQualityCoreImmunization",
  "title" : "US Quality Core Immunization",
  "status" : "active",
  "experimental" : false,
  "date" : "2026-05-15",
  "publisher" : "Office of the National Coordinator for Health Information Technology (ONC)",
  "contact" : [{
    "name" : "Office of the National Coordinator for Health Information Technology (ONC)",
    "telecom" : [{
      "system" : "url",
      "value" : "https://www.healthit.gov/feedback"
    }]
  }],
  "description" : "Profile of Immunization for decision support/quality metrics. Defines the core set of elements and extensions for quality rule and measure authors.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "US",
      "display" : "United States of America"
    }],
    "text" : "USA"
  }],
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "workflow",
    "uri" : "http://hl7.org/fhir/workflow",
    "name" : "Workflow Pattern"
  },
  {
    "identity" : "v2",
    "uri" : "http://hl7.org/v2",
    "name" : "HL7 v2 Mapping"
  },
  {
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  },
  {
    "identity" : "w5",
    "uri" : "http://hl7.org/fhir/fivews",
    "name" : "FiveWs Pattern Mapping"
  },
  {
    "identity" : "cda",
    "uri" : "http://hl7.org/v3/cda",
    "name" : "CDA (R2)"
  }],
  "kind" : "resource",
  "abstract" : false,
  "type" : "Immunization",
  "baseDefinition" : "http://hl7.org/fhir/us/core/StructureDefinition/us-core-immunization|6.1.0",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Immunization",
      "path" : "Immunization"
    },
    {
      "id" : "Immunization.id",
      "path" : "Immunization.id",
      "mustSupport" : false
    },
    {
      "id" : "Immunization.status",
      "extension" : [{
        "url" : "http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement",
        "valueBoolean" : true
      },
      {
        "url" : "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/uscdiplusquality",
        "valueBoolean" : true
      }],
      "path" : "Immunization.status",
      "short" : "(USCDI+ Quality) (USCDI) completed | entered-in-error",
      "binding" : {
        "strength" : "required",
        "valueSet" : "http://fhir.org/guides/onc/us-quality-core/ValueSet/us-quality-core-non-negative-immunization-status"
      }
    },
    {
      "id" : "Immunization.statusReason",
      "extension" : [{
        "url" : "http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement",
        "valueBoolean" : true
      },
      {
        "url" : "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/uscdiplusquality",
        "valueBoolean" : true
      }],
      "path" : "Immunization.statusReason",
      "short" : "(USCDI+ Quality) (USCDI) Reason not done",
      "min" : 0,
      "max" : "1",
      "binding" : {
        "strength" : "preferred",
        "valueSet" : "http://hl7.org/fhir/ValueSet/immunization-status-reason"
      }
    },
    {
      "id" : "Immunization.vaccineCode",
      "extension" : [{
        "url" : "http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement",
        "valueBoolean" : true
      }],
      "path" : "Immunization.vaccineCode",
      "short" : "(USCDI) Vaccine Product Type (bind to CVX)"
    },
    {
      "id" : "Immunization.patient",
      "extension" : [{
        "url" : "http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement",
        "valueBoolean" : true
      }],
      "path" : "Immunization.patient",
      "short" : "(USCDI) Who was immunized",
      "type" : [{
        "code" : "Reference",
        "targetProfile" : ["http://fhir.org/guides/onc/us-quality-core/StructureDefinition/us-quality-core-patient"]
      }]
    },
    {
      "id" : "Immunization.occurrence[x]",
      "extension" : [{
        "url" : "http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement",
        "valueBoolean" : true
      },
      {
        "url" : "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/uscdiplusquality",
        "valueBoolean" : true
      }],
      "path" : "Immunization.occurrence[x]",
      "short" : "(USCDI+ Quality) (USCDI) Vaccine administration date"
    },
    {
      "id" : "Immunization.recorded",
      "path" : "Immunization.recorded",
      "short" : "When the immunization was first captured in the subject's record",
      "min" : 0,
      "max" : "1"
    },
    {
      "id" : "Immunization.primarySource",
      "extension" : [{
        "url" : "http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement",
        "valueBoolean" : true
      },
      {
        "url" : "http://fhir.org/guides/onc/us-quality-core/StructureDefinition/uscdiplusquality",
        "valueBoolean" : true
      }],
      "path" : "Immunization.primarySource",
      "short" : "(USCDI+ Quality) (USCDI) Indicates context the data was recorded in"
    }]
  }
}

```
