111NN1001X Nutrition Chiropractor

Definition

Chiropractic Nutrition is that specialty within the chiropractic profession that deals with the overall factors that affect the patient's ability to maintain the manipulative correction and thus sustain better neurological integrity. The Chiropractic Nutrition Specialist will perform extensive research on the patient's previous health history, ethnicity, and any family history related to what the patient is being treated for. Patients fill out questionnaires concerning dietary and sleep patterns and previous or present symptomology. A nutrition examination would be performed to assess areas such as absorption rates, adrenal function, kidney health, lung health etc. The patient is often instructed on how to check the pH of their saliva and urine, test for the presence of Candida Albicans, etc., at home. Outside laboratory testing includes blood, urine, hair analysis, food allergy testing etc. The patient's prescription and over the counter medications are recorded and analyzed.

— NUCC Health Care Provider Taxonomy, version 26.1

Where 111NN1001X sits

• Group: Chiropractic Providers — code 5 of 12 in the group
• Classification: Chiropractor 111N00000X
• Specialization: Nutrition 111NN1001X

Choose 111NN1001X over the general Chiropractor code (111N00000X) when the provider's training or certification is specifically in nutrition; 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 111NN1001X 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; 111NP0017X Pediatric Chiropractor; 111NR0200X Radiology Chiropractor; 111NR0400X Rehabilitation Chiropractor; 111NS0005X Sports Physician Chiropractor; and 3 more.

Related codes

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

History of 111NN1001X

NUCC's earliest recorded change to 111NN1001X is from 2009 (definition added).

• 2009-07-01 — definition added

Similar codes in other groups

If 111NN1001X 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:

• 207LP4000X Physician Nutrition Specialist (Anesthesiology) (Allopathic & Osteopathic Physicians)
• 207QP0002X Physician Nutrition Specialist (Family Medicine) (Allopathic & Osteopathic Physicians)
• 207RP1002X Physician Nutrition Specialist (Internal Medicine) (Allopathic & Osteopathic Physicians)
• 2080P1004X Physician Nutrition Specialist (Pediatrics) (Allopathic & Osteopathic Physicians)
• 2086P0122X Physician Nutrition Specialist (Surgery) (Allopathic & Osteopathic Physicians)
• 133VN1101X Gerontological Nutrition Registered Dietitian (Dietary & Nutritional Service Providers)

Using 111NN1001X

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.