description: This Bundle profile enforces the various elements of [signature](https://hl7.org/fhir/us/davinci-cdex/signatures.html) documented in the CDex guide to represent an enveloped signature. It adds the following *mandatory* (min=1) constraint:\n\n- A `Bundle.signature` element using the [CDex Signature Profile](https://hl7.org/fhir/us/davinci-cdex/StructureDefinition-cdex-signature.html)
package_name: hl7.fhir.us.davinci
derivation: constraint
name: CDexSignatureBundle
type: Bundle
elements:
  signature: {type: Signature, mustSupport: true, index: 0}
package_version: cdex-2.1.0
class: profile
kind: resource
url: http://hl7.org/fhir/us/davinci-cdex/StructureDefinition/cdex-signature-bundle
base: http://hl7.org/fhir/StructureDefinition/Bundle
version: 2.1.0
required: [signature]