• Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-RoleCode version 2.2.0

  Code	Display	Definition
  C	Calibrator	A specimen used for initial calibration settings of an instrument
  G	Group	A set of patient samples in which the individuals of the group may or may not be identified.
  L	Pool	Aliquots of individual specimens combined to form a single specimen representing all of the included individuals.
  P	Patient	A specimen that has been collected from a patient.
  Q	Quality Control	A specimen specifically used to verify the sensitivity, specificity, accuracy or other perfomance parameter of a diagnostic test.
  B	Blind	Quality Control specimen submitted to the lab whose identity and composition is not known to the lab.
  E	Electronic QC	An electronically simulated QC specimen
  F	Filler Proficiency	Specimen used for testing proficiency of an organization performing testing (how does this differ from O?)
  O	Operator Proficiency	A specimen used for evaluation of operator proficiency (operator in what context?)
  V	Verifying	A specimen used for periodic calibration checks of instruments
  R	Replicate	A portion of an original patent sample that is tested at the same time as the original sample

This value set expansion contains 11 concepts.