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For Web Developers

System Developer Requests

NGC has developed RSS Feeds of selected NGC content, such as the weekly New This Week and Announcements pages, and a complete inventory (including UMLS concepts) of guideline summary, expert commentary, and guideline synthesis titles.

Linking to NGC

NGC invites you to link from your Web site to the NGC Home page at External Web Site Policy. Webmasters establishing a link to the NGC Web site are encouraged to send an e-mail providing the name of the Web site and the URL to

Note: Graphics and/or other links from your Web site to NGC may not be used for advertising or commercial endorsement purposes.

Text to Describe NGC

NGC is a comprehensive database of evidence-based clinical practice guidelines and related documents. NGC is an initiative of the Agency for Healthcare Research and Quality (AHRQ), U.S. Department of Health and Human Services. NGC was originally created by AHRQ in partnership with the American Medical Association and the American Association of Health Plans (now America's Health Insurance Plans [AHIP]).

Sample Links

The images and text shown below on this page should assist you in coding your HTML links to the NGC Web site. Choose a plain text or graphic link and paste the block of HTML code under it right into your page. Please make sure to include the trademark symbol with the National Guideline Clearinghouse name.

Text Link

National Guideline Clearinghouse™ (NGC) External Web Site Policy

Graphic Links

National Guideline Clearinghouse

Retrieving Specific Pages of Search Results

Web developers can retrieve a specific page of NGC search results and display them on other Web pages. This feature enables Web developers to limit the number of results and provide pagination of NGC search results on their Web pages.

To use this feature, please follow these steps:

  • Retrieve a specific page of search results by adding &page=X to the end of the URL for search results.
  • Replace X with the page number that you want.

The page parameter is indexed to 1, so that the first page of results is 1, the second page is 2, the third page is 3, and so on. By default, each page contains 20 results. For the first page of results, the page parameter is optional.

For example, NGC search results for the search term "healthy" would look like this: and return more than 1,000 results. By default, results 1-20 for the search term "healthy" are displayed on page 1, results 21-40 are on page 2, etc. To get results 61-80, change the URL to

Page Last Reviewed or Updated: July 15, 2016