NPI Desk

Respiratory, Developmental, Rehabilitative and Restorative Service Providers / 227900000X

Individual · classification

227900000X Registered Respiratory Therapist

227900000X is the taxonomy code for Respiratory Therapist, Registered, in the NUCC group “Respiratory, Developmental, Rehabilitative and Restorative 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.

24JNPI1234567893227900000XRespiratory Therapist, Regi…1234
  1. 1Taxonomy code 227900000X
  2. 2Level Classification
  3. 3Medicare specialty Not in the crosswalk
  4. 4Codes in this group 82
Code
227900000X
classification
NPI type
Type 1
individual
Medicare specialty
—
no match in the CMS crosswalk
NUCC change log
0 changes
none recorded

Definition

A Registered Respiratory Therapist (RRT) is an advanced therapist who has passed standardized written and clinical simulation examinations administered by the National Board for Respiratory Care (NBRC). In addition, to the certified therapist (CRT) entry level skills, RRTs have advanced education and training in patient assessment, in the development and modification of patient care plans, and in assuring the appropriate utilization of respiratory care resources. An RRT is a graduate of an associate or baccalaureate degree producing educational programs approved by the Commission on Accreditation of Allied Health Education Programs (CAAHEP) and where applicable, is licensed by the state and is practicing within the scope of that license.

— NUCC Health Care Provider Taxonomy, version 26.1

Where 227900000X sits

This is the general code for Respiratory Therapist, Registered. 13 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

227900000X 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

CodeRespiratory Therapist, Registered — specializations
2279C0205XCritical Care
2279E1000XEducational
2279E0002XEmergency Care
2279G1100XGeneral Care
2279G0305XGeriatric Care
2279H0200XHome Health
2279P3900XNeonatal/Pediatrics
2279P3800XPalliative/Hospice
2279P4000XPatient Transport
2279P1004XPulmonary Diagnostics
2279P1006XPulmonary Function Technologist
2279P1005XPulmonary Rehabilitation
2279S1500XSNF/Subacute Care

History of 227900000X

NUCC's notes record no dated changes for 227900000X. 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 227900000X 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:

Find providers with 227900000X

 

Using 227900000X

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.