This example demonstrates using the bodystructure resource to identify a fetus within systems that choose not to treat a fetus as a Patient

{
  "resourceType": "BodyStructure",
  "id": "fetus",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: BodyStructure</b><a name=\"fetus\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource BodyStructure &quot;fetus&quot; </p></div><p><b>identifier</b>: id: 12345</p><h3>IncludedStructures</h3><table class=\"grid\"><tr><td>-</td><td><b>Structure</b></td></tr><tr><td>*</td><td>Fetus <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#83418008 &quot;Entire fetus (body structure)&quot;)</span></td></tr></table><p><b>description</b>: EDD 1/1/2017 confirmation by LMP</p><p><b>patient</b>: <a href=\"patient-example.html\">Patient/example</a> &quot;Peter CHALMERS&quot;</p></div>"
  },
  "identifier": [
    {
      "system": "http://goodhealth.org/bodystructure/identifiers",
      "value": "12345"
    }
  ],
  "includedStructure": [
    {
      "structure": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "83418008",
            "display": "Entire fetus (body structure)"
          }
        ],
        "text": "Fetus"
      }
    }
  ],
  "description": "EDD 1/1/2017 confirmation by LMP",
  "patient": {
    "reference": "Patient/example"
  }
}