This value set includes codes based on the following rules:

• Include these codes as defined in urn:oid:2.16.840.1.114222.4.5.274 version 20210611

  Code	Display
  PHC2337	Coombs
  PHC2333	IgG (agglutination)
  PHC2335	IgG ELISA or EIA
  PHC2334	IgM ELISA or EIA
  PHC2336	Rose Bengal
  PHC2332	Total antibody (agglutination)

• Include these codes as defined in http://snomed.info/sct version http://snomed.info/sct/731000124108/version/20210322

  Code	Display
  61594008	Culture
  9718006	PCR

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-NullFlavor version 20090501

  Code	Display
  OTH	Other lab test (specify)
  UNK	Unknown