Behavioral Health & Social Service Providers / 101Y00000X
Individual · classification
101Y00000X Counselor
101Y00000X is the taxonomy code for Counselor, 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 101Y00000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 40
Definition
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 101Y00000X sits
- Group: Behavioral Health & Social Service Providers — code 6 of 40 in the group
- Classification: Counselor 101Y00000X
This is the general code for Counselor. 5 more specific codes sit beneath it; pick one of those when the provider's training or certification matches it, and this one otherwise. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
101Y00000X 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
| Code | Counselor — specializations |
|---|---|
| 101YA0400X | Addiction (Substance Use Disorder) |
| 101YM0800X | Mental Health |
| 101YP1600X | Pastoral |
| 101YP2500X | Professional |
| 101YS0200X | School |
History of 101Y00000X
NUCC's notes record no dated changes for 101Y00000X. The code set is republished every January and July, when codes are added, retitled or marked inactive; this page reflects version 26.1, so check the NUCC site if you are reading it after the next release.
Similar codes in other groups
If 101Y00000X 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:
- 170300000X Genetic Counselor (M.S.) (Other Service Providers)
- 225C00000X Rehabilitation Counselor (Respiratory, Developmental, Rehabilitative and Restorative Service Providers)
Find providers with 101Y00000X
Using 101Y00000X
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.