# Dualkey (field)

A key used to facilitate textual searches of SNOMED CT that consists of the first three letters of a pair of words in a Description. All possible pairs of words in each Description may be paired irrespective of their relative position in the Description. *Dualkeys* are represented as a row in the *Dualkeys* Table.

Note: Field name in SNOMED CT toolkit

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# Agent Instructions: Querying This Documentation

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```
GET https://docs.snomed.org/snomed-ct-specifications/snomed-ct-release-file-specification/appendices/appendix-b.-specification-reference-information/d/dualkey-field.md?ask=<question>
```

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