What is the code for generalized anxiety disorder?

The code for generalized anxiety disorder (GAD) in the ICD-10 is F41.1. In the DSM-5, GAD is classified under the category of anxiety disorders but does not have a specific code; it is generally referenced by the diagnostic criteria rather than a numeric code. For billing purposes in the United States, GAD is often coded as 300.02 in the ICD-10-CM system.