This is the ValueSet that contains all the codes in HL7 TimingAbbreviation + NHI-健保事前審查-藥品使用頻率值集 (https://nhicore.nhi.gov.tw/pas/ValueSet/medication-frequency-hl7-nhi) and HL7 TimingAbbreviation + NHI-健保事前審查-藥品使用頻率值集 (https://nhicore.nhi.gov.tw/pas/ValueSet/medication-frequency-hl7-nhi). E.g. what you have to deal with if you get resources containing codes in either of them