Ambulatory Health Care Facilities / 261QR0405X
Non-Individual · specialization · Medicare specialty D5
261QR0405X Substance Use Disorder Rehabilitation Clinic/Center
261QR0405X is the taxonomy code for Rehabilitation, Substance Use Disorder, a specialization of Clinic/Center, in the NUCC group “Ambulatory Health Care Facilities”. It is a code for organizations — the kind used on a Type 2 NPI. Medicare maps it to specialty D5, Opioid Treatment Program, under which 0 practitioners are enrolled.
- 1Taxonomy code 261QR0405X
- 2Level Specialization
- 3Medicare specialty D5 Opioid Treatment Program
- 4Codes in this group 63
Definition
NUCC publishes no definition for 261QR0405X; the code is identified by its place in the tree below.
Where 261QR0405X sits
- Group: Ambulatory Health Care Facilities — code 57 of 63 in the group
- Classification: Clinic/Center 261Q00000X
- Specialization: Rehabilitation, Substance Use Disorder 261QR0405X
Choose 261QR0405X over the general Clinic/Center code (261Q00000X) when the provider's training or certification is specifically in rehabilitation, substance use disorder; 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 261QR0405X to Medicare specialty D5 (Opioid Treatment Program). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 0 practitioners are enrolled under it nationally.
Related codes
| Code | Clinic/Center — other specializations |
|---|---|
| 261QR0400X | Rehabilitation |
| 261QR0404X | Rehabilitation, Cardiac Facilities |
| 261QR0401X | Rehabilitation, Comprehensive Outpatient Rehabilitation Facility (CORF) |
| 261QR1100X | Research |
| 261QR1300X | Rural Health |
| 261QS1200X | Sleep Disorder Diagnostic |
The nearest 6 of 62 other codes under Clinic/Center; all are on the group page.
History of 261QR0405X
NUCC's notes record no dated changes for 261QR0405X. 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 261QR0405X 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:
- 208100000X Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians)
- 2081P0010X Pediatric Rehabilitation Medicine Physician (Allopathic & Osteopathic Physicians)
- 101YA0400X Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers)
- 103TA0400X Addiction (Substance Use Disorder) Psychologist (Behavioral Health & Social Service Providers)
- 103TR0400X Rehabilitation Psychologist (Behavioral Health & Social Service Providers)
- 111NR0400X Rehabilitation Chiropractor (Chiropractic Providers)
Find providers with 261QR0405X
Using 261QR0405X
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.