This code system http://terminology.hl7.org/CodeSystem/substance-category defines the following codes:
\n \n \n \n \n \n Code\n \n | \n \n \n \n Display\n \n | \n \n \n \n Definition\n \n | \n \n
\n \n \n \n allergen\n \n \n \n | \n \n Allergen | \n \n A substance that causes an allergic reaction. | \n \n
\n \n \n \n biological\n \n \n \n | \n \n Biological Substance | \n \n A substance that is produced by or extracted from a biological source. | \n \n
\n \n \n \n body\n \n \n \n | \n \n Body Substance | \n \n A substance that comes directly from a human or an animal (e.g. blood, urine, feces, tears, etc.). | \n \n
\n \n \n \n chemical\n \n \n \n | \n \n Chemical | \n \n Any organic or inorganic substance of a particular molecular identity, including -- (i) any combination of such substances occurring in whole or in part as a result of a chemical reaction or occurring in nature and (ii) any element or uncombined radical (http://www.epa.gov/opptintr/import-export/pubs/importguide.pdf). | \n \n
\n \n \n \n food\n \n \n \n | \n \n Dietary Substance | \n \n A food, dietary ingredient, or dietary supplement for human or animal. | \n \n
\n \n \n \n drug\n \n \n \n | \n \n Drug or Medicament | \n \n A substance intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease in man or other animals (Federal Food Drug and Cosmetic Act). | \n \n
\n \n \n \n material\n \n \n \n | \n \n Material | \n \n A finished product which is not normally ingested, absorbed or injected (e.g. steel, iron, wood, plastic and paper). | \n \n
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