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