This is the CodeSystem that contains all the codes in NHI-健保事前審查-用藥線別 (https://nhicore.nhi.gov.tw/pas/CodeSystem/nhi-line-of-therapy) and NHI-健保事前審查-用藥線別 (https://nhicore.nhi.gov.tw/pas/CodeSystem/nhi-line-of-therapy). E.g. what you have to deal with if you get resources containing codes in either of them