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
  429951000124103	Bacterial isolate specimen
  119297000	Blood specimen
  309051001	Body fluid sample
  258607008	Bronchoalveolar lavage fluid sample
  258564008	Buccal smear sample
  122554006	Capillary blood specimen
  128306009	Cataract
  258450006	Cerebrospinal fluid sample
  69640009	Crust
  258566005	Deoxyribonucleic acid sample
  119294007	Dried blood specimen
  309049000	Lesion sample
  119303007	Microbial isolate specimen
  258411007	Nasopharyngeal aspirate
  258500001	Nasopharyngeal swab
  258467004	Nasopharyngeal washings
  448789008	Nucleic acid specimen
  441620008	Oral fluid specimen
  418932006	Oral swab
  119361006	Plasma specimen
  258603007	Respiratory specimen
  441673008	Ribonucleic acid specimen
  119342007	Saliva specimen
  435541000124108	Scab specimen
  119364003	Serum specimen
  309068002	Skin lesion sample
  123038009	Specimen
  122609004	Specimen from lung obtained by bronchial washing procedure
  440674008	Specimen obtained by lavage
  119339001	Stool specimen
  257261003	Swab
  472862007	Swab from lesion of skin
  472901003	Swab from nasal sinus
  472875007	Vesicular Swab
  258529004	Throat swab
  119376003	Tissue specimen
  445297001	Swab of internal nose
  122575003	Urine specimen
  258482009	Vesicle fluid sample
  430751000124105	Viral isolate specimen

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

  Code	Display
  PHC227	Buccal Swab
  PHC228	Macular Scraping

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

  Code	Display
  UNK	unknown
  OTH	Other