This page is part of the FHIR Specification (v4.3.0: R4B -  STU). This is a downloaded version of the specification.  For a full list of available versions, see the Directory of published versions 
FHIR Infrastructure   Work Group | Maturity Level: 3 | Trial Use | Use Context: Any | 
This is a value set defined by the FHIR project.
Summary
| Defining URL: | http://hl7.org/fhir/ValueSet/item-type | 
| Version: | 4.3.0 | 
| Name: | QuestionnaireItemType | 
| Title: | QuestionnaireItemType | 
| Definition: | Distinguishes groups from questions and display text and indicates data type for questions.  | 
| Committee: | FHIR Infrastructure   Work Group | 
| OID: | 2.16.840.1.113883.4.642.3.444 (for OID based terminology systems) | 
| Source Resource | XML / JSON | 
This value set is used in the following places:
http://hl7.org/fhir/item-type
This expansion generated 28 May 2022
This value set contains 16 concepts
Expansion based on QuestionnaireItemType v4.3.0 (CodeSystem)
All codes in this table are from the system http://hl7.org/fhir/item-type
| Level | Code | Display | Definition | 
| 1 | group | Group | An item with no direct answer but should have at least one child item. | 
| 1 | display | Display | Text for display that will not capture an answer or have child items. | 
| 1 | question | Question | An item that defines a specific answer to be captured, and which may have child items. (the answer provided in the QuestionnaireResponse should be of the defined datatype). | 
| 2 | boolean | Boolean | Question with a yes/no answer (valueBoolean). | 
| 2 | decimal | Decimal | Question with is a real number answer (valueDecimal). | 
| 2 | integer | Integer | Question with an integer answer (valueInteger). | 
| 2 | date | Date | Question with a date answer (valueDate). | 
| 2 | dateTime | Date Time | Question with a date and time answer (valueDateTime). | 
| 2 | time | Time | Question with a time (hour:minute:second) answer independent of date. (valueTime). | 
| 2 | string | String | Question with a short (few words to short sentence) free-text entry answer (valueString). | 
| 2 | text | Text | Question with a long (potentially multi-paragraph) free-text entry answer (valueString). | 
| 2 | url | Url | Question with a URL (website, FTP site, etc.) answer (valueUri). | 
| 2 | choice | Choice | Question with a Coding drawn from a list of possible answers (specified in either the answerOption property, or via the valueset referenced in the answerValueSet property) as an answer (valueCoding). | 
| 2 | open-choice | Open Choice | Answer is a Coding drawn from a list of possible answers (as with the choice type) or a free-text entry in a string (valueCoding or valueString). | 
| 2 | attachment | Attachment | Question with binary content such as an image, PDF, etc. as an answer (valueAttachment). | 
| 2 | reference | Reference | Question with a reference to another resource (practitioner, organization, etc.) as an answer (valueReference). | 
| 2 | quantity | Quantity | Question with a combination of a numeric value and unit, potentially with a comparator (<, >, etc.) as an answer. (valueQuantity) There is an extension 'http://hl7.org/fhir/StructureDefinition/questionnaire-unit' that can be used to define what unit should be captured (or the unit that has a ucum conversion from the provided unit). | 
See the full registry of value sets defined as part of FHIR.
Explanation of the columns that may appear on this page:
| Lvl | A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information | 
| Source | The source of the definition of the code (when the value set draws in codes defined elsewhere) | 
| Code | The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract') | 
| Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application | 
| Definition | An explanation of the meaning of the concept | 
| Comments | Additional notes about how to use the code |