# Additional Insurance Card Information - CARIN Digital Insurance Card v2.0.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Additional Insurance Card Information**

## Extension: Additional Insurance Card Information 

| | | |
| :--- | :--- | :--- |
| *Official URL*:http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-AdditionalCardInformation-extension | *Version*:2.0.0 | |
| * Standards status: *[Trial-use](http://hl7.org/fhir/R4/versions.html#std-process) | [Maturity Level](http://hl7.org/fhir/versions.html#maturity): 2 | *Computable Name*:AdditionalCardInformation |

This extension enables the passing of free text items often found on insurance cards or references to related resources such as Summary of Benefits and Coverage (SBC) documents. Health plans may provide this extension as part of the Coverage resource to communicate concepts such as TTY, disclaimers about eligibility or limits to coverage, notice of dental or vision coverage, or to link to a structured SBC InsurancePlan resource.

**Context of Use**

This extension may be used on the following element(s):

* Element ID Coverage

**Usage info**

**Usages:**

* Use this Extension: [C4DIC Coverage](StructureDefinition-C4DIC-Coverage.md)
* Examples for this Extension: [Coverage/Example-Coverage-FSH](Coverage-Example-Coverage-FSH.md) and [Coverage/Example-Coverage1](Coverage-Example-Coverage1.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/hl7.fhir.us.insurance-card|current/StructureDefinition/C4DIC-AdditionalCardInformation-extension)

### Formal Views of Extension Content

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

 

Other representations of profile: [CSV](StructureDefinition-C4DIC-AdditionalCardInformation-extension.csv), [Excel](StructureDefinition-C4DIC-AdditionalCardInformation-extension.xlsx), [Schematron](StructureDefinition-C4DIC-AdditionalCardInformation-extension.sch) 

#### Constraints



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "C4DIC-AdditionalCardInformation-extension",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "claims"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 2,
    "_valueInteger" : {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical" : "http://hl7.org/fhir/us/insurance-card/ImplementationGuide/hl7.fhir.us.insurance-card"
      }]
    }
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "trial-use",
    "_valueCode" : {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical" : "http://hl7.org/fhir/us/insurance-card/ImplementationGuide/hl7.fhir.us.insurance-card"
      }]
    }
  }],
  "url" : "http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-AdditionalCardInformation-extension",
  "version" : "2.0.0",
  "name" : "AdditionalCardInformation",
  "title" : "Additional Insurance Card Information",
  "status" : "active",
  "date" : "2026-03-20T01:21:28+00:00",
  "publisher" : "HL7 International / Payer/Provider Information Exchange Work Group",
  "contact" : [{
    "name" : "HL7 International / Payer/Provider Information Exchange Work Group",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/claims"
    },
    {
      "system" : "email",
      "value" : "pie@lists.HL7.org"
    }]
  }],
  "description" : "This extension enables the passing of free text items often found on insurance cards or references to related resources such as Summary of Benefits and Coverage (SBC) documents. Health plans may provide this extension as part of the Coverage resource to communicate concepts such as TTY, disclaimers about eligibility or limits to coverage, notice of dental or vision coverage, or to link to a structured SBC InsurancePlan resource.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "US"
    }]
  }],
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  }],
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "type" : "element",
    "expression" : "Coverage"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Extension",
      "path" : "Extension",
      "short" : "Additional Insurance Card Information",
      "definition" : "This extension enables the passing of free text items often found on insurance cards or references to related resources such as Summary of Benefits and Coverage (SBC) documents. Health plans may provide this extension as part of the Coverage resource to communicate concepts such as TTY, disclaimers about eligibility or limits to coverage, notice of dental or vision coverage, or to link to a structured SBC InsurancePlan resource."
    },
    {
      "id" : "Extension.extension",
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "id" : "Extension.url",
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-AdditionalCardInformation-extension"
    },
    {
      "id" : "Extension.value[x]",
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "Annotation"
      },
      {
        "code" : "Reference",
        "targetProfile" : ["http://hl7.org/fhir/us/insurance-card/StructureDefinition/sbc-insurance-plan"]
      }]
    }]
  }
}

```
