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What is Taxonomy Code?

Last updated: Nov 26, 2025

Glossary › Taxonomy Code

Taxonomy Code Definition

Taxonomy codes define how payers interpret a provider’s qualifications and allowable services. They influence credentialing approval, network placement, prior authorization, and claims adjudication. Incorrect or outdated taxonomy codes create misalignment between provider capabilities and payer rules. Strong provider data governance ensures taxonomy accuracy across all operational systems.

FAQs

How do taxonomy codes impact claims?

Services outside the assigned taxonomy are commonly denied.

Can providers have multiple taxonomy codes?

Yes, if each aligns with payer and contract requirements.

Why are taxonomy updates operationally risky?

Changes may require recredentialing or payer notification.