This is the ValueSet that contains codes in both 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).