What is NIOCCS?

The NIOSH Industry & Occupation Computerized Coding System (NIOCCS) is a web-based software tool designed to translate industry and occupation text to standardized industry and occupation codes. It is used by occupational researchers, federal government agencies, state health departments and other organizations that collect and/or evaluate information using industry and occupation. Its purpose is to provide a tool that reduces the high cost of manually coding I&O information while simultaneously improving uniformity of the codes.


How does it work?

Since 2012, NIOCCS has been autocoding industry and occupation from text to codes. In 2021, the coding operational system was upgraded to use machine learning, a form of artificial intelligence, to select the appropriate industry or occupation code. Machine learning uses sophisticated prediction models and allows systems to learn and improve from experience.

Previously NIOCCS was only able to autocode a portion of the data, but now every industry and occupation record uploaded into NIOCCS will receive a code. The results are more accurate and consistent because of the machine learning platform. Also, your data will code faster than ever. The upgraded version can autocode files with tens of thousands of records in minutes.


How do I use NIOCCS?

NIOCCS is available free of charge and requires only internet access and a web browser for use. Users are required to have a Secure Management Services (SAMS) account to upload files of industry and occupation records for coding or crosswalk. The NIOCCS team can provide more information on this at NIOCCS@cdc.gov. Single Record Coding and Single Record Crosswalk Coding do not require a SAMS account.


Where can I learn more about SAMS?

Everyone needs a Secure Access Management Services (SAMS) account to code a file in NIOCCS. To get a SAMS account, please email us (1) your first and last name, and (2) your email address. Once we receive this information, we can enter it into the SAMS system, which will then send you an invitation email to complete your SAMS account set up. The invitation will include a link to the SAMS online registration form. SAMS online registration requires you to provide the following:

  • Home address
  • Organization / employer name and address
  • Phone number

NIOCCS and its administrators will not use or share your name, your email address, or any of the information collected during SAMS online registration. NIOCCS administrators will only contact you through your email address.

You can contact the SAMS Help Desk if you have additional questions or would like more information:
SAMS Help Desk
Monday-Friday, 8:00AM to 6:00PM EST


How to cite NIOCCS?

NIOSH (2022). NIOSH Industry and Occupation Computerized Coding System (NIOCCS). U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Field Studies & Engineering, Health Informatics Branch. <website address> Date accessed._________.


What do I do if I’m having technical difficulties?

Go to Contact Us under the Help menu to send a question to the NIOCCS team, or send an email directly to NIOCCS@cdc.gov


CDC.gov Policies and Regulations
CDC.gov Privacy Policy

Usage Conditions
You are accessing a U.S. Government information system, which includes (1) this computer, (2) this computer network, (3) all computers connected to this network, and (4) all devices and storage media attached to this network or to a computer on this network. This information system is provided for U.S. Government-authorized use only.

  • Unauthorized or improper use of this system may result in disciplinary action, as well as civil and criminal penalties.
  • By using this information system, you understand and consent to the following:
    • You have no reasonable expectation of privacy regarding any communication or data transiting or stored on this information system. At any time, and for any lawful Government purpose, the government may monitor, intercept, and search and seize any communication or data transiting or stored on this information system.
    • Any communication or data transiting or stored on this information system may be disclosed or used for any lawful Government purpose.

The material embodied in this software is provided to you "as-is" and without warranty of any kind, express, implied or otherwise, including without limitation, any warranty of fitness for a particular purpose. In no event shall the Centers for Disease Control and Prevention (CDC) or the United States (U.S.) government be liable to you or anyone else for any direct, special, incidental, indirect or consequential damages of any kind, or any damages whatsoever, including without limitation, loss of profit, loss of use, savings or revenue, or the claims of third parties, whether or not CDC or the U.S. government has been advised of the possibility of such loss, however caused and on any theory of liability, arising out of or in connection with the possession, use or performance of this software.

Page last reviewed: August 31, 2021