Skip Navigation

HHS A-Z Index

What is the A-Z Index?

The HHS A-Z Index is a navigational and informational tool that makes the Web site easier to use. It helps you quickly find and retrieve specific information. The A-Z Index is structured so that synonyms, acronyms, and cross-referencing provide multiple ways for you to access the topics and features on The Index includes common and scientific terms to meet the needs of consumers as well as professionals.

What items are included?

The HHS A-Z Index lists topics with relevance to a broad cross-section of’s audiences. The items are representative of popular topics and frequent inquiries or have critical importance to HHS’s health and social services missions. The Index will continue to evolve as additional topics are added.  

Are there other A-Z indexes in HHS?

A number of sites within the HHS family of Web sites have their own A-Z indexes that reflect the specialized content they offer.  Key A-Z indexes on other HHS sites include—

Can I suggest a new entry?

We welcome your suggestions; please email