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/20201118

  Code	Display
  43364001	Abdominal discomfort
  419284004	Altered mental status
  389026000	Ascites
  29857009	Chest Pain
  43724002	Chill
  371632003	Coma
  125667009	Bruising
  49727002	Cough
  62315008	Diarrhea
  40739000	Dysphagia
  267036007	Dyspnea
  79654002	Edema
  247441003	Erythema
  52613005	Diaphoresis
  36948007	Fasciitis
  84229001	Fatigue
  386661006	Fever
  25064002	Headache
  95545007	Bloody diarrhea
  418363000	Pruritus
  30746006	Lymphadenopathy
  367391008	Malaise
  7180009	Meningitis
  422587007	Nausea
  162397003	Sore throat
  409668002	Photophobia
  271760008	Pustules
  91175000	Convulsions
  409590008	Eschar
  60728008	Abdominal swelling
  827008005	Vesicles
  422400008	Vomiting

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/umls version 20201208

  Code	Display
  C2957106	Severe headaches

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

  Code	Display
  OTH	other
  UNK	Unknown