Behavioral Health & Social Service Providers / 103K00000X
Individual · classification
103K00000X Behavior Analyst
103K00000X is the taxonomy code for Behavior Analyst, in the NUCC group “Behavioral Health & Social Service Providers”. It is a code for individual providers — the kind used on a Type 1 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.
- 1Taxonomy code 103K00000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 40
Definition
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 103K00000X sits
- Group: Behavioral Health & Social Service Providers — code 3 of 40 in the group
- Classification: Behavior Analyst 103K00000X
Behavior Analyst has no specializations, so 103K00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
103K00000X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — the provider can still hold an NPI and use this code on claims to other payers.
Related codes
No other codes share the classification Behavior Analyst. The rest of Behavioral Health & Social Service Providers is on the group page.
History of 103K00000X
103K00000X was added to the code set in 2008, and has been revised 1 time since.
- 2008-07-01 — new
- 2016-01-01 — modified definition
Find providers with 103K00000X
Using 103K00000X
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). Checked 2026-10-24. Methodology.