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 621511 Medical Laboratories

This U.S. industry comprises establishments known as medical laboratories primarily engaged in providing analytic or diagnostic services, including body fluid analysis, generally to the medical profession or to the patient on referral from a health practitioner.


  • Establishments known as dental laboratories primarily engaged in making dentures, artificial teeth, and orthodontic appliances to prescription are classified in U.S. Industry 339116, Dental Laboratories;
  • Establishments known as optical laboratories primarily engaged in grinding of lenses to prescription are classified in U.S. Industry 339115, Ophthalmic Goods Manufacturing; and
  • Establishments known as orthopedic laboratories primarily engaged in making orthopedic or prosthetic appliances to prescription are classified in U.S. Industry 339113, Surgical Appliance and Supplies Manufacturing.
    No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
    Corresponding Index Entries
    6215116215118071Bacteriological laboratories, diagnostic
    6215116215118071Bacteriological laboratories, medical
    6215116215118071Biological laboratories, diagnostic
    6215116215118071Blood analysis laboratories
    6215116215118071Cytology health laboratories
    6215116215118071DNA testing laboratories
    6215116215118071Forensic laboratories, medical
    6215116215118071Genetic testing laboratories
    6215116215118071Laboratories, medical (except radiological, X-ray)
    6215116215118071Laboratory testing services, medical (except radiological, X-ray)
    6215116215118071Medical laboratories (except radiological, X-ray)
    6215116215118071Medical pathology laboratories
    6215116215118071Mycology health laboratories
    6215116215118071Parasitology health laboratories
    6215116215118071Pathological analysis laboratories
    6215116215118071Pathology laboratories, medical
    6215116215118071Testing laboratories, medical
    6215116215118071Toxicology health laboratories
    6215116215118071Urinalysis laboratories