SearchParamType

Data types allowed to be used for search parameters.

This code system http://hl7.org/fhir/search-param-type defines the following codes:

Code Display Definition
number Number Search parameter SHALL be a number (a whole number, or a decimal).
date Date/DateTime Search parameter is on a date/time. The date format is the standard XML format, though other formats may be supported.
string String Search parameter is a simple string, like a name part. Search is case-insensitive and accent-insensitive. May match just the start of a string. String parameters may contain spaces.
token Token Search parameter on a coded element or identifier. May be used to search through the text, display, code and code/codesystem (for codes) and label, system and key (for identifier). Its value is either a string or a pair of namespace and value, separated by a "|", depending on the modifier used.
reference Reference A reference to another resource (Reference or canonical).
composite Composite A composite search parameter that combines a search on two values together.
quantity Quantity A search parameter that searches on a quantity.
uri URI A search parameter that searches on a URI (RFC 3986).
special Special Special logic applies to this parameter per the description of the search parameter.
<status value="active"/> <experimental value="false"/> <date value="2019-11-01T09:29:23+11:00"/> <description value="Data types allowed to be used for search parameters."/> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/search-param-type"/> <content value="complete"/> <concept> <code value="number"/> <display value="Number"/> <definition value="Search parameter SHALL be a number (a whole number, or a decimal)."/> </concept> <concept> <code value="date"/> <display value="Date/DateTime"/> <definition value="Search parameter is on a date/time. The date format is the standard XML format, though other formats may be supported."/> </concept> <concept> <code value="string"/> <display value="String"/> <definition value="Search parameter is a simple string, like a name part. Search is case-insensitive and accent-insensitive. May match just the start of a string. String parameters may contain spaces."/> </concept> <concept> <code value="token"/> <display value="Token"/> <definition value="Search parameter on a coded element or identifier. May be used to search through the text, display, code and code/codesystem (for codes) and label, system and key (for identifier). Its value is either a string or a pair of namespace and value, separated by a "|", depending on the modifier used."/> </concept> <concept> <code value="reference"/> <display value="Reference"/> <definition value="A reference to another resource (Reference or canonical)."/> </concept> <concept> <code value="composite"/> <display value="Composite"/> <definition value="A composite search parameter that combines a search on two values together."/> </concept> <concept> <code value="quantity"/> <display value="Quantity"/> <definition value="A search parameter that searches on a quantity."/> </concept> <concept> <code value="uri"/> <display value="URI"/> <definition value="A search parameter that searches on a URI (RFC 3986)."/> </concept> <concept> <code value="special"/> <display value="Special"/> <definition value="Special logic applies to this parameter per the description of the search parameter."/> </concept> </CodeSystem>