Data type FN in FHIR

How the components of data type FN (Family Name) become FHIR R4 elements, from the HL7 Version 2 to FHIR guide.

HL7 v2 definition
Definition of FN in HL7 v2 2.8
Maps
HumanName

To HumanName9 rows

HL7 v2 sourcev2 typeFHIR elementFHIR typeConditions and notes
FN.1Surname
STfamilystring
FN.2Own Surname Prefix
STfamily.extension[1].urluri
Value "http://hl7.org/fhir/StructureDefinition/humanname-own-prefix"
FN.2Own Surname Prefix
STfamily.extension[1].valueStringstring
FN.3Own Surname
STfamily.extension[2].urluri
Value "http://hl7.org/fhir/StructureDefinition/humanname-own-name"
FN.3Own Surname
STfamily.extension[2].valueStringstring
FN.4Surname Prefix From Partner/Spouse
STfamily.extension[3].urluri
Value "http://hl7.org/fhir/StructureDefinition/humanname-partner-prefix"
FN.4Surname Prefix From Partner/Spouse
STfamily.extension[3].valueStringstring
FN.5Surname From Partner/Spouse
STfamily.extension[3].urluri
Value "http://hl7.org/fhir/StructureDefinition/humanname-partner-name"
FN.5Surname From Partner/Spouse
STfamily.extension[3].valueStringstring