This value set includes codes based on the following rules:

• Include these codes as defined in urn:oid:2.16.840.1.113883.12.78 version HL7 v2.8.2

  Code	Display
  A	Abnormal (applies to non-numeric results)
  >	Above absolute high-off instrument scale
  H	Above high normal
  HH	Above upper panic limits
  <	Below absolute low-off instrument scale
  L	Below low normal
  LL	Below lower panic limits
  B	Better--use when direction not relevant
  DET	Detected
  IND	Indeterminate
  I	Intermediate. Indicates for microbiology susceptibilities only.
  MS	Moderately susceptible. Indicates for microbiology susceptibilities only
  NEG	Negative
  NR	Non-reactive
  N	Normal (applies to non-numeric results)
  ND	Not Detected
  POS	Positive
  RR	Reactive
  R	Resistant. Indicates for microbiology susceptibilities only.
  D	Significant change down
  U	Significant change up
  S	Susceptible. Indicates for microbiology susceptibilities only.
  AA	Very abnormal (applies to non-numeric units, analogous to panic limits for numeric units)
  VS	Very susceptible. Indicates for microbiology susceptibilities only.
  WR	Weakly reactive
  W	Worse--use when direction not relevant

• Include these codes as defined in urn:oid:2.16.840.1.114222.4.5.274 version 20200526

  Code	Display
  PHC1286	No lesions and no tissue to test

• Include these codes as defined in http://snomed.info/sct version http://snomed.info/sct/731000124108/version/20200901

  Code	Display
  373121007	Test not done

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

  Code	Display
  UNK	unknown