This value set includes codes based on the following rules:

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

  Code	Display
  84387000	Asymptomatic
  416113008	Febrile illness
  7180009	Meningitis
  698293005	Acute flaccid paralysis
  40956001	Guillain-Barre Syndrome
  57653000	Multi-System Organ Failure
  38362002	Dengue
  82353009	Congenital infection

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

  Code	Display
  PHC638	Encephalitis - Including Meningoencephalitis
  PHC639	Hepatitis/Jaundice
  PHC1457	Other Neuroinvasive Presentation
  PHC1459	Dengue-like illness
  PHC1458	Severe Dengue

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

  Code	Display
  OTH	Other Clinical
  UNK	unknown