# Estrogen Receptor status - ACT-NOW Implementation Guide v0.5.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Estrogen Receptor status**

## Resource Profile: Estrogen Receptor status 

| | |
| :--- | :--- |
| *Official URL*:http://canshare.co.nz/fhir/StructureDefinition/an-er-status | *Version*:0.5.0 |
| Draft as of 2026-06-15 | *Computable Name*:ObservationErStatus |

 
An observation that represents an ER status 

**Usages:**

* Examples for this Profile: [Observation/ERStatus](Observation-ERStatus.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/resource/actnow.canshare.co.nz|current/StructureDefinition/StructureDefinition-an-er-status.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-an-er-status.csv), [Excel](StructureDefinition-an-er-status.xlsx), [Schematron](StructureDefinition-an-er-status.sch) 



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "an-er-status",
  "url" : "http://canshare.co.nz/fhir/StructureDefinition/an-er-status",
  "version" : "0.5.0",
  "name" : "ObservationErStatus",
  "title" : "Estrogen Receptor status",
  "status" : "draft",
  "date" : "2026-06-15T22:12:46+00:00",
  "publisher" : "Te aho o te kahu - Cancer Control Agency",
  "contact" : [{
    "name" : "Te aho o te kahu - Cancer Control Agency",
    "telecom" : [{
      "system" : "email",
      "value" : "mailto:david.hay25@gmail.com"
    }]
  }],
  "description" : "An observation that represents an ER status",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "NZ",
      "display" : "New Zealand"
    }]
  }],
  "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"
    },
    {
      "id" : "Observation.status",
      "path" : "Observation.status",
      "mustSupport" : true
    },
    {
      "id" : "Observation.code",
      "path" : "Observation.code",
      "mustSupport" : true
    },
    {
      "id" : "Observation.code.coding",
      "path" : "Observation.code.coding",
      "slicing" : {
        "discriminator" : [{
          "type" : "pattern",
          "path" : "code"
        }],
        "rules" : "open"
      },
      "min" : 1
    },
    {
      "id" : "Observation.code.coding:snomedCode",
      "path" : "Observation.code.coding",
      "sliceName" : "snomedCode",
      "min" : 1,
      "max" : "1"
    },
    {
      "id" : "Observation.code.coding:snomedCode.system",
      "path" : "Observation.code.coding.system",
      "patternUri" : "http://snomed.info/sct/21000210109"
    },
    {
      "id" : "Observation.code.coding:snomedCode.code",
      "path" : "Observation.code.coding.code",
      "min" : 1,
      "patternCode" : "445028008"
    },
    {
      "id" : "Observation.subject",
      "path" : "Observation.subject",
      "min" : 1,
      "mustSupport" : true
    },
    {
      "id" : "Observation.value[x]",
      "path" : "Observation.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "mustSupport" : true,
      "binding" : {
        "strength" : "required",
        "valueSet" : "https://nzhts.digital.health.nz/fhir/ValueSet/canshare-sact-er-expression"
      }
    }]
  }
}

```
