http://hl7.org/fhir/StructureDefinition/codesystem-alternate|5.2.0

An additional code that may be used to represent the concept.

element_id	types
Extension
Extension.extension:code	Extension
Extension.extension:code.extension
Extension.extension:code.url	uri
Extension.extension:code.value[x]	code
Extension.extension:use	Extension
Extension.extension:use.extension
Extension.extension:use.url	uri
Extension.extension:use.value[x]	Coding
Extension.url
Extension.value[x]
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.extension:code	Extension
Extension.extension:code.id	http://hl7.org/fhirpath/System.String
Extension.extension:code.extension	Extension
Extension.extension:code.url	uri
Extension.extension:code.value[x]	code
Extension.extension:use	Extension
Extension.extension:use.id	http://hl7.org/fhirpath/System.String
Extension.extension:use.extension	Extension
Extension.extension:use.url	uri
Extension.extension:use.value[x]	Coding
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	base64Binary,boolean,canonical,code,date,dateTime,decimal,id,instant,integer,integer64,markdown,oid,positiveInt,string,time,unsignedInt,uri,url,uuid,Address,Age,Annotation,Attachment,CodeableConcept,CodeableReference,Coding,ContactPoint,Count,Distance,Duration,HumanName,Identifier,Money,Period,Quantity,Range,Ratio,RatioRange,Reference,SampledData,Signature,Timing,ContactDetail,DataRequirement,Expression,ParameterDefinition,RelatedArtifact,TriggerDefinition,UsageContext,Availability,ExtendedContactDetail,Dosage,Meta