---
type: "sdc-page"
title: "SDC: StructureDefinition-sdc-servicerequest-intro"
source: "sdc/input/pagecontent/StructureDefinition-sdc-servicerequest-intro.xml"
---
# SDC: StructureDefinition-sdc-servicerequest-intro

### Scope and Usage

This profile inherits from the base [ServiceRequest]({{site.data.fhir.path}}servicerequest). It identifies core elements and extensions that must be supported and highlights other elements that, while not required, is used to ask for a Questionnaire to be completed.