Substance Category Codes

A substance that causes an allergic reaction.

A substance that is produced by or extracted from a biological source.

A substance that comes directly from a human or an animal (e.g. blood, urine, feces, tears, etc.).

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).

A food, dietary ingredient, or dietary supplement for human or animal.

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).

A finished product which is not normally ingested, absorbed or injected (e.g. steel, iron, wood, plastic and paper).