NORMS ICD Codes
- NOS - not otherwise specified
- U.S. Department of Health, Education, and Welfare: Eighth Revision International Classification of Diseases, adapted for use in the United States. PHS Pub. No. 1693. ICDA Volume 1. 1967.
- World Health Organization: International Classification of Diseases, Ninth Revision, Volume 1. 1977.
- World Health Organization: International Statistical Classification of Diseases and Related Health Problems 10th Revision, Volume 1. 1992.
- Page last reviewed:June 6, 2017
- Page last updated:January 5, 2016
- Content source:
- Centers for Disease Control and Prevention,
- National Institute for Occupational Safety and Health, Respiratory Health Division, Surveillance Branch