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/20210322

  Code	Display
  23451007	Adrenal structure
  362102006	All teeth, gums and supporting structures
  53505006	Anal structure
  66754008	Appendix structure
  87612001	Blood
  59820001	Blood vessel structure
  110522009	Bone and joint, CS
  14016003	Bone marrow structure
  12738006	Brain structure
  76752008	Breast structure
  17401000	Cardiac valve structure
  71854001	Colon structure
  38848004	Duodenal structure
  110547006	Epiglottis and larynx, CS
  32849002	Esophageal structure
  16014003	Extrahepatic duct structure
  28231008	Gallbladder structure
  80891009	Heart structure
  281778006	Intrathoracic lymphatic structure
  110611003	Jejunum and ileum, CS
  48477009	Lip structure
  10200004	Liver structure
  39607008	Lung structure
  1231004	Meninges structure
  110708006	Middle ear and mastoid cells
  47604008	Miliary tuberculosis
  123851003	Mouth region structure
  45206002	Nasal structure
  71836000	Nasopharyngeal structure
  15776009	Pancreatic structure
  120228005	Paranasal sinus part
  76848001	Pericardial structure
  83670000	Peritoneal cavity structure
  54066008	Pharyngeal structure
  56329008	Pituitary structure
  110973009	Placenta, umbilical cord and implantation site, CS
  3120008	Pleural structure
  34402009	Rectum structure
  385294005	Salivary gland structure
  39937001	Skin structure
  2748008	Spinal cord structure
  78961009	Splenic structure
  69695003	Stomach structure
  21514008	Structure of genitourinary system
  69831007	Structure of lymphatic system of neck
  25087005	Structure of nervous system
  71966008	Subcutaneous tissue structure
  9875009	Thymus gland structure
  297261005	Thyroid and/or parathyroid structures
  21974007	Tongue structure
  303337002	Tonsil and adenoid structure
  44567001	Tracheal structure

• Include these codes as defined in urn:oid:2.16.840.1.114222.4.5.274 version 20210611

  Code	Display
  PHC5	Site not Stated
  PHC4	Eye and ear appendages
  PHC2	Lymphatic Other
  PHC3	Lymphatic Unknown

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/umls version 20210608

  Code	Display
  C0230999	Fetus and embryo

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

  Code	Display
  OTH	Other specimen source site (specify)
  UNK	Unknown