This is the CodeSystem that contains all the codes in NHI-健保重大傷病-癌症期別 (https://nhicore.nhi.gov.tw/ci/CodeSystem/cancer-stage) and NHI-健保重大傷病-癌症期別 (https://nhicore.nhi.gov.tw/ci/CodeSystem/cancer-stage). E.g. what you have to deal with if you get resources containing codes in either of them