Login Page

UMLS Authentication
(& New US Users)

Email Address:


VTSL Account

User name or Email Address:


Reset password.

First-time Users:

US Users:

  1. Enter your email address in the UMLS Authentication box and click continue to register with our site.
  2. Fill out our registration form. Fields with Red Asterisk (*) are required.
  3. Click Register and you will be taken to the National Library of Medicine (NLM) UMLS authentication portal. There you can authenticate with your current UMLS account or register for an account with NLM.
    If you don't have a UMLS license/account, you must Sign Up by clicking Sign Up button at the top right part of the screen and follow all instructions to create a UMLS account. If you need help with this part of the process, you will need to use UMLS help, as there system is independent of ours and we can not help you with technical issues with their system.
  4. Once authenticated at UMLS, you will be returned to this site with full access to the Veterinary Extension of SNOMED CT (VetSCT). In order to gain access to additional resources, such as the AAHA Problem and Diagnosis Terms, you will need to complete your registration by verifying your email and then requesting additional access in the My Profile section of our site.

Non-US Users: Users who live in a SNOMED member country and obtain their license through their National Release Center or users who hold a SNOMED CT Affiliate License should email us at vtsl.info@vt.edu and we will create a local account in our system with a username and password.