# Observation: Infectious Contact (HDR CZ) - HL7 Czech Hospital Discharge Report Implementation Guide v0.1.0

* [**Table of Contents**](toc.md)
* [**Artifacts**](artifacts.md)
* **Observation: Infectious Contact (HDR CZ)**

## Resource Profile: Observation: Infectious Contact (HDR CZ) 

| | |
| :--- | :--- |
| *Official URL*:https://hl7.cz/fhir/hdr/StructureDefinition/cz-observation-infectious-contact-hdr | *Version*:0.1.0 |
| Draft as of 2026-03-20 | *Computable Name*:CZ_ObservationInfectiousContactHdr |

 
Infectious Contact profile represents potential patient exposure to an agent (exposure source). 

**Usages:**

* Refer to this Profile: [Composition (HDR CZ)](StructureDefinition-cz-composition-hdr.md)
* Examples for this Profile: [Observation/Observation-InfectiousContact](Observation-Observation-InfectiousContact.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/hl7.fhir.cz.hdr|current/StructureDefinition/cz-observation-infectious-contact-hdr)

### 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-cz-observation-infectious-contact-hdr.csv), [Excel](StructureDefinition-cz-observation-infectious-contact-hdr.xlsx), [Schematron](StructureDefinition-cz-observation-infectious-contact-hdr.sch) 



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "cz-observation-infectious-contact-hdr",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-imposeProfile",
    "valueCanonical" : "http://hl7.eu/fhir/hdr/StructureDefinition/observation-infectious-contact-eu-hdr"
  }],
  "url" : "https://hl7.cz/fhir/hdr/StructureDefinition/cz-observation-infectious-contact-hdr",
  "version" : "0.1.0",
  "name" : "CZ_ObservationInfectiousContactHdr",
  "title" : "Observation: Infectious Contact (HDR CZ)",
  "status" : "draft",
  "experimental" : false,
  "date" : "2026-03-20T08:27:28+00:00",
  "publisher" : "HL7 Czech Republic",
  "contact" : [{
    "name" : "HL7 Czech Republic",
    "telecom" : [{
      "system" : "url",
      "value" : "https://www.hl7.cz/"
    }]
  }],
  "description" : "Infectious Contact profile represents potential patient exposure to an agent (exposure source).",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "CZ",
      "display" : "Czechia"
    }]
  }],
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "workflow",
    "uri" : "http://hl7.org/fhir/workflow",
    "name" : "Workflow Pattern"
  },
  {
    "identity" : "sct-concept",
    "uri" : "http://snomed.info/conceptdomain",
    "name" : "SNOMED CT Concept Domain Binding"
  },
  {
    "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" : "sct-attr",
    "uri" : "http://snomed.org/attributebinding",
    "name" : "SNOMED CT Attribute Binding"
  }],
  "kind" : "resource",
  "abstract" : false,
  "type" : "Observation",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Observation",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Observation",
      "path" : "Observation",
      "short" : "Infectious Contact Profile"
    },
    {
      "id" : "Observation.status",
      "path" : "Observation.status",
      "short" : "Observation status"
    },
    {
      "id" : "Observation.category",
      "path" : "Observation.category",
      "slicing" : {
        "discriminator" : [{
          "type" : "value",
          "path" : "$this"
        }],
        "rules" : "open"
      },
      "min" : 1
    },
    {
      "id" : "Observation.category:exposureClass",
      "path" : "Observation.category",
      "sliceName" : "exposureClass",
      "short" : "Use AEXPOS for aquisition exposure, use TEXPOS for transmission exposure, or use EXPOS if the type of exposure is unknown",
      "definition" : "Use AEXPOS for aquisition exposure, use TEXPOS for transmission exposure, or use EXPOS if the type of exposure is unknown",
      "min" : 1,
      "max" : "1",
      "binding" : {
        "strength" : "required",
        "valueSet" : "http://terminology.hl7.org/ValueSet/v3-ActClassExposure|3.0.0"
      }
    },
    {
      "id" : "Observation.code",
      "path" : "Observation.code",
      "short" : "Exposure Agent",
      "patternCodeableConcept" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/v3-ParticipationType",
          "code" : "EXPAGNT"
        }]
      }
    },
    {
      "id" : "Observation.subject",
      "path" : "Observation.subject",
      "min" : 1,
      "type" : [{
        "code" : "Reference",
        "targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Group",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-patient-core"]
      }]
    },
    {
      "id" : "Observation.effective[x]",
      "path" : "Observation.effective[x]",
      "short" : "Time or period the contact/exposure occurred."
    },
    {
      "id" : "Observation.performer",
      "path" : "Observation.performer",
      "comment" : "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "type" : [{
        "code" : "Reference",
        "targetProfile" : ["http://hl7.org/fhir/StructureDefinition/RelatedPerson",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-patient-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-practitioner-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-practitionerrole-core",
        "https://hl7.cz/fhir/core/StructureDefinition/cz-organization-core",
        "http://hl7.org/fhir/StructureDefinition/CareTeam"]
      }]
    },
    {
      "id" : "Observation.performer.reference",
      "path" : "Observation.performer.reference",
      "min" : 1
    },
    {
      "id" : "Observation.value[x]",
      "path" : "Observation.value[x]",
      "slicing" : {
        "discriminator" : [{
          "type" : "type",
          "path" : "$this"
        }],
        "ordered" : false,
        "rules" : "open"
      }
    },
    {
      "id" : "Observation.value[x]:valueCodeableConcept",
      "path" : "Observation.value[x]",
      "sliceName" : "valueCodeableConcept",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "binding" : {
        "strength" : "preferred",
        "valueSet" : "https://hl7.cz/fhir/hdr/ValueSet/exposureAgent-eu-hdr"
      }
    },
    {
      "id" : "Observation.note",
      "path" : "Observation.note",
      "short" : "Comments about this Infection Contact"
    }]
  }
}

```
