HL7 table 0128 in FHIR

How the codes of HL7 table 0128 translate to FHIR codes, from the HL7 Version 2 to FHIR guide.

HL7 table definition
0128 Allergy Severity
Code map
reaction-event-severity
HL7 code system
http://terminology.hl7.org/CodeSystem/v2-0128
FHIR code system
http://hl7.org/fhir/reaction-event-severity

codes 3

HL7 codeHL7 descriptionFHIR codeFHIR display
SVSeveresevereSevere
MOModeratemoderateModerate
MIMildmildMild

Used by 2