Fonteum Data GlossaryData Standards
NUCC: Definition and Healthcare Context
Full name: National Uniform Claim Committee
The National Uniform Claim Committee (NUCC) is a voluntary organization led by the American Medical Association that maintains the standard professional claim form (CMS-1500) and the Healthcare Provider Taxonomy code set used in HIPAA administrative transactions. NUCC taxonomy codes identify a provider's type, classification, and specialization for purposes of NPI enumeration and claim processing. NUCC publishes taxonomy code updates annually. The complete NUCC taxonomy code set is publicly available and is the authoritative source for all taxonomy codes stored in NPPES.
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Last updated: 2026-07-11Reviewed by: Dr. Jennifer Montecillo, MD — Gullas College of Medicine, 2019. Non-practicing medical reviewer.
How it’s used
- CMS NPPES NPI Registry: NPPES uses NUCC taxonomy codes to classify every enumerated provider. Fonteum's taxonomy-code data in provider profiles comes directly from NPPES NUCC taxonomy fields.
- Healthcare Provider Taxonomy code set: NUCC maintains the taxonomy that classifies each provider's type and specialization, the code set behind Fonteum's specialty fields.
- CMS-1500 claim form: NUCC also maintains the standard professional claim form, anchoring how provider identity flows through HIPAA administrative transactions.
Frequently asked questions
- What is NUCC?
- NUCC (National Uniform Claim Committee) is the standards body that maintains the CMS-1500 professional claim form and the Healthcare Provider Taxonomy code set.
- What does NUCC maintain?
- NUCC maintains the Healthcare Provider Taxonomy code set (used in NPPES and HIPAA transactions) and the standardized CMS-1500 professional claim form.
- Where can I download NUCC taxonomy codes?
- The complete NUCC taxonomy code set is freely downloadable from nucc.org under the Code Sets section.