111NX0100X Occupational Health Chiropractor

Definition

Occupational Health is that specialty within the chiropractic profession that deals with the prevention and management of work related injuries. It also considers and assists clients with State and Federal Compliance assistance. Occupational Health goes much farther than simply treating injured workers however. This may mean working with clients to promote optimum safety and ergonomic principles, interacting with the injured worker to promote safety and prevent future injuries, assisting a company with accident investigation to identify root cause, redesigning a workstation to eliminate hazards, working with safety teams, providing training programs etc. The list of potential services that the specialist can interact with a client company or patient is lengthy and varied involving both in office services as well as on site services.

— NUCC Health Care Provider Taxonomy, version 26.1

Where 111NX0100X sits

• Group: Chiropractic Providers — code 6 of 12 in the group
• Classification: Chiropractor 111N00000X
• Specialization: Occupational Health 111NX0100X

Choose 111NX0100X over the general Chiropractor code (111N00000X) when the provider's training or certification is specifically in occupational health; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.

Medicare

CMS's taxonomy crosswalk links 111NX0100X to Medicare specialty 35 (Chiropractic). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 45,873 practitioners are enrolled under it nationally, and 11 other taxonomy codes map to the same specialty.

Other codes under the same Medicare specialty: 111N00000X Chiropractor; 111NI0013X Independent Medical Examiner Chiropractor; 111NI0900X Internist Chiropractor; 111NN0400X Neurology Chiropractor; 111NN1001X Nutrition Chiropractor; 111NP0017X Pediatric Chiropractor; 111NR0200X Radiology Chiropractor; 111NR0400X Rehabilitation Chiropractor; and 3 more.

Related codes

The nearest 6 of 11 other codes under Chiropractor; all are on the group page.

History of 111NX0100X

NUCC's earliest recorded change to 111NX0100X is from 2009 (title modified, definition added).

• 2009-07-01 — title modified, definition added

Similar codes in other groups

If 111NX0100X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:

• 2083X0100X Occupational Medicine Physician (Allopathic & Osteopathic Physicians)
• 2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians)
• 152WX0102X Occupational Vision Optometrist (Eye and Vision Services Providers)
• 163WX0106X Occupational Health Registered Nurse (Nursing Service Providers)
• 364SX0106X Occupational Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers)
• 363LX0106X Occupational Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers)

Using 111NX0100X

The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.

Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.