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 20200526

  Code	Display
  PHC1910	Drug Shortage
  PHC1886	History of Previous Treatment for TB or LTBI
  PHC2094	Provider Decision

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

  Code	Display
  399307001	Lost to Follow Up
  397745006	Treatment Medically Contraindicated
  105480006	Patient Refused
  183964008	Treatment Not Offered Based on Local Clinic Guidelines

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

  Code	Display
  OTH	Other (specify)