Enter concept codes to search the Concept Code(s) field within a record.

Concept codes are five-digit codes representing broad subject areas in the life sciences. A definition (concept heading) of the code follows the numeric code. You may search by code or heading.

To see a list of concept codes and headings, click this link.

To display this field on the Search page, review the instructions for Add Another Field.

Examples

• 13520
• Poultry and Eggs
• 605*
• 06002 AND 06004

Concept Codes List

Click the concept code list link to access a list of concept codes that you can add to your query. Using the Concept Codes search aid allows you to locate the precise codes and concepts to add to your search.

Search Tip

Groups of related Concept Codes are arranged under broad concept headings. For example, the concept heading for Toxicology is comprised of Concept Codes 22501-22508 and can be searched with a wildcard. Example: 225*