NUCC taxonomy code

276400000X - Substance Use Disorder Rehabilitation Hospital Unit

276400000X is the NUCC provider taxonomy code for Substance Use Disorder Rehabilitation Hospital Unit (organizations). 370 providers in our latest NPPES snapshot list it as their primary taxonomy.

370 providers · primary taxonomy

Code breakdown

Taxonomy code 276400000X

Display name Substance Use Disorder Rehabilitation Hospital Unit

Grouping Hospital Units

Classification Rehabilitation, Substance Use Disorder Unit

Section Non-Individual

Directory Rehabilitation, Substance Use Disorder Unit provider directory

Definition

A distinct part of a hospital that provides medically monitored, interdisciplinary addiction-focused treatment to patients/clients who have psychoactive substance use disorders (commonly referred to as alcohol and drug abuse or substance abuse.)

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

273100000X Epilepsy Hospital Unit 275N00000X Medicare Defined Swing Bed Hospital Unit 273R00000X Psychiatric Hospital Unit 273Y00000X Rehabilitation Hospital Unit

Frequently asked questions

What does taxonomy code 276400000X mean?

276400000X is the NUCC Health Care Provider Taxonomy code for Substance Use Disorder Rehabilitation Hospital Unit in the "Hospital Units" grouping. It classifies organizations and non-individual providers.

Where is the taxonomy code used?

Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.

How do I find providers with taxonomy 276400000X?

Browse the Rehabilitation, Substance Use Disorder Unit directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-13.