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
  15167005	Alcohol abuse
  195967001	Asthma
  125666000	Burn
  230744007	Cerebrospinal fluid leak
  230690007	Cerebrovascular accident
  43252007	Cochlear prosthesis
  42343007	Congestive heart failure
  53741008	Coronary arteriosclerosis
  73211009	Diabetes mellitus
  414027002	Disorder of hematopoietic structure
  127040003	Hb SS disease
  118599009	Hodgkin's disease (clinical)
  234532001	Immunodeficiency disorder
  417167007	Immunoglobulin deficiency
  86553008	Immunosuppressive therapy
  228388006	Intravenous drug user
  90708001	Kidney disease
  93143009	Leukemia
  197375001	Liver disorder NOS
  271470009	Malignant neoplasm of other and unspecified sites
  109989006	Multiple myeloma
  52254009	Nephrotic syndrome
  260413007	None
  16453004	Operation on stomach
  13200003	Peptic ulcer
  77176002	Smoker
  55464009	Systemic lupus erythematosus

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

  Code	Display
  PHC337	chronic GI illness/diarrhea
  PHC280	cirrhosis/liver failure
  PHC278	deaf/profound hearing loss
  PHC279	emphysema/COPD
  PHC281	renal failure/dialysis
  PHC282	splenectomy/asplenia

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/umls version 20200813

  Code	Display
  C0029216	organ transplant (specify)

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

  Code	Display
  OTH	other prior illness (specify)
  UNK	unknown