Union of http://www.ncbi.nlm.nih.gov/refseq and http://www.ncbi.nlm.nih.gov/refseq

This is the CodeSystem that contains all the codes in Gene Reference Sequence Collection (http://www.ncbi.nlm.nih.gov/refseq) and Gene Reference Sequence Collection (http://www.ncbi.nlm.nih.gov/refseq). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem 2c77c26f-0eba-4543-89eb-09eda3cba01c-3545

This code system http://hl7.org/fhir/comparison/CodeSystem/2c77c26f-0eba-4543-89eb-09eda3cba01c-3545 defines codes, but no codes are represented here

Code