Union of http://terminology.hl7.org/CodeSystem/sequence-phase-relationship-cs and http://terminology.hl7.org/CodeSystem/sequence-phase-relationship-cs

This is the CodeSystem that contains all the codes in Sequence Phase Relationship Codes (http://terminology.hl7.org/CodeSystem/sequence-phase-relationship-cs) and Sequence Phase Relationship Codes (http://terminology.hl7.org/CodeSystem/sequence-phase-relationship-cs). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem 75646cd5-442a-4a9b-b29e-48e4f1210478-29

This code system http://hl7.org/fhir/comparison/CodeSystem/75646cd5-442a-4a9b-b29e-48e4f1210478-29 defines codes, but no codes are represented here

CodeDefinition
Cis Phase is in cis (same chromosome)
Trans Phase is in trans (different chromosomes)
Indeterminate Phase is unable to be determined
Unknown Phase is unknown