MedlinePlus Connect Web Service Demonstration

PLEASE NOTE: The base URLS for the MedlinePlus Connect Web Application and the MedlinePlus Connect Web Service will change permanently on August 30, 2018.

If you are a current user of MedlinePlus Connect, you will need to update your implementation to reflect the new URLs. The deadline for updating your implementation is August 30, 2018.

If you are a new user setting up an implementation of MedlinePlus Connect, please use the new URLs.

The table below outlines the URL changes that will occur. (Note that in addition to production services, demonstration URLs will change.)

Old URLs New URLs
Web Application
Web Application Demo
Web Service
Web Service Demo

Use this demo to see how the MedlinePlus Connect Web service responds to codes for diagnoses (problems), medications and lab tests. This response will be in XML, JSON, or JSONP. Also see the MedlinePlus Connect Web application demonstration for responses in a Web page format.

The MedlinePlus Connect Web service conforms to the HL7 Context-Aware Knowledge Retrieval (Infobutton) Service-Oriented Architecture Implementation Guide. The output of the request is XML (presented in the Atom feed format), JSON, or JSONP.

When you enter or select a code below, we show you the parsed responses and a representation of the XML, JSON, or JSONP formatted for human readability.

Problem Codes


Medication Codes


Lab Test Codes


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