Allopathic & Osteopathic Physicians / 2084B0040X
Individual · specialization · Medicare specialty 86
2084B0040X Behavioral Neurology & Neuropsychiatry Physician
2084B0040X is the taxonomy code for Behavioral Neurology & Neuropsychiatry, a specialization of Psychiatry & Neurology, in the NUCC group “Allopathic & Osteopathic Physicians”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 86, Physician/Neuropsychiatry, under which 436 practitioners are enrolled.
- 1Taxonomy code 2084B0040X
- 2Level Specialization
- 3Medicare specialty 86 Physician/Neuropsychiatry
- 4Codes in this group 238
Definition
Behavioral Neurology & Neuropsychiatry is a medical subspecialty involving the diagnosis and treatment of neurologically based behavioral issues.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 2084B0040X sits
- Group: Allopathic & Osteopathic Physicians — code 191 of 238 in the group
- Classification: Psychiatry & Neurology
- Specialization: Behavioral Neurology & Neuropsychiatry 2084B0040X
Choose 2084B0040X over the general Psychiatry & Neurology code when the provider's training or certification is specifically in behavioral neurology & neuropsychiatry; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 2084B0040X to Medicare specialty 86 (Physician/Neuropsychiatry). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 436 practitioners are enrolled under it nationally, and 19 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician; 2084B0002X Obesity Medicine (Psychiatry & Neurology) Physician; 2084D0003X Diagnostic Neuroimaging (Psychiatry & Neurology) Physician; 2084F0202X Forensic Psychiatry Physician; 2084H0002X Hospice and Palliative Medicine (Psychiatry & Neurology) Physician; 2084N0008X Neuromuscular Medicine (Psychiatry & Neurology) Physician; 2084N0400X Neurology Physician; 2084N0402X Neurology with Special Qualifications in Child Neurology Physician; and 11 more.
Related codes
| Code | Psychiatry & Neurology — other specializations |
|---|---|
| 2084A0401X | Addiction Medicine |
| 2084P0802X | Addiction Psychiatry |
| 2084P0301X | Brain Injury Medicine |
| 2084P0804X | Child & Adolescent Psychiatry |
| 2084N0600X | Clinical Neurophysiology |
The nearest 5 of 22 other codes under Psychiatry & Neurology; all are on the group page.
History of 2084B0040X
2084B0040X was added to the code set in 2012.
- 2012-01-01 — new
Similar codes in other groups
If 2084B0040X 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:
- 103TB0200X Cognitive & Behavioral Psychologist (Behavioral Health & Social Service Providers)
- 111NN0400X Neurology Chiropractor (Chiropractic Providers)
- 2251N0400X Neurology Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers)
- 251S00000X Community/Behavioral Health Agency (Agencies)
- 3104A0630X Assisted Living Facility (Behavioral Disturbances) (Nursing & Custodial Care Facilities)
Find providers with 2084B0040X
Using 2084B0040X
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); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.