Service Request

A record of a request for service such as diagnostic investigations, treatments, or operations to be performed. https://www.hl7.org/fhir/servicerequest.html

ServiceRequest Implementation Guide

• instantiatesCanonical - (Feb 2020) Do not use, there are no templates to instantiate an SR from.
• basedOn - a reference to a relevant care plan. (Feb 2020: for now all patients have only one "general" care plan). When a new patient is created, a "general" care plan should be created too.
• status - description: https://www.hl7.org/fhir/valueset-request-status.html . A new SR has "active" status. Should be changed to "completion" when completed. When a task is deleted, it is not permanently deleted but set to "revoked".
• intent - description: https://www.hl7.org/fhir/valueset-request-intent.html . always "order".
• category - (Feb 2020): the description, https://www.hl7.org/fhir/valueset-servicerequest-category.html , is not clear. One exmaple uses: http://terminology.hl7.org/CodeSystem/condition-category Don't add this property.
• priority - description: https://www.hl7.org/fhir/valueset-request-priority.html. Default = "routine".
• Performer - the nurse to implement. Can start without one.
• Reason - can be text only. Preferred full "Code" element with structured code from a system.

Service Request Examples

• http://loinc.org , 39135-9, Wound Assessment
• http://loinc.or, 51990-0 , Basic metabolic panel - Blood
• http://snomed.info/sct, 373784005, Dispensing medication (procedure)
• SNOMED, 410188000, Taking patient vital signs assessment (procedure)
• SNOMED, 276272002, Catheter procedure (procedure)
• 103715008, Removal of catheter (procedure)
• 698507004, Insertion of feeding tube into small intestine (procedure)
• Encounter - when creating the SR, usually there is no encounter yet.

JSON - ServiceRequest

{ "resourceType": "ServiceRequest",

"status": "active",
"intent": "original-order",
"code": {
  "coding": [
    {
      "system": "http://loinc.org",
      "code": "51990-0"
    }
  ],
  "text": "Basic metabolic panel - Blood"
},
"subject": {
  "reference": "Patient/a96c50a3-fddc-451a-93b7-be3b7f129fc8"
},
"occurrenceDateTime": "2020-02-13T09:33:27+07:00",
"requester": {
  "reference": "Practitioner/87d80d38-8d50-46b8-8066-1af447ff4383",
  "display": "Dr. Adam Careful"
},
"performer": [
    {
      "reference": "Practitioner/8cba6c16-4f07-42de-9b06-b5af4f05f23c"
    }
  ],
"reasonCode": [
  {
    "text": "A family member reported the patient very week in the last few days"
  }
]

}