225XE0001X Environmental Modification Occupational Therapist

Definition

Occupational therapy practitioners are experts at identifying the cause of difficulties in performance of activities of daily living and instrumental activities of daily living. Occupational therapy practitioners evaluate the client, their environment, and their occupational performance in that environment, as well as make recommendations for products to improve the fit between the client, place, and activity. Occupational therapists can evaluate both the skills of the client and the environmental features that support or limit the performance of meaningful or necessary activities, thereby enhancing health, safety and well-being. Based on this assessment, they recommend modification and intervention strategies that improve the fit between the person and his or her environment.

— NUCC Health Care Provider Taxonomy, version 26.1

Where 225XE0001X sits

• Group: Respiratory, Developmental, Rehabilitative and Restorative Service Providers — code 12 of 82 in the group
• Classification: Occupational Therapist 225X00000X
• Specialization: Environmental Modification 225XE0001X

Choose 225XE0001X over the general Occupational Therapist code (225X00000X) when the provider's training or certification is specifically in environmental modification; 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 225XE0001X to Medicare specialty 67 (Occupational Therapist in Private Practice). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 24,487 practitioners are enrolled under it nationally, and 12 other taxonomy codes map to the same specialty.

Other codes under the same Medicare specialty: 225X00000X Occupational Therapist; 225XE1200X Ergonomics Occupational Therapist; 225XF0002X Feeding, Eating & Swallowing Occupational Therapist; 225XG0600X Gerontology Occupational Therapist; 225XH1200X Hand Occupational Therapist; 225XH1300X Human Factors Occupational Therapist; 225XL0004X Low Vision Occupational Therapist; 225XM0800X Mental Health Occupational Therapist; and 4 more.

Related codes

The nearest 5 of 12 other codes under Occupational Therapist; all are on the group page.

History of 225XE0001X

225XE0001X was added to the code set in 2008.

• 2008-07-01 — new

Similar codes in other groups

If 225XE0001X 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:

• 2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians)

Using 225XE0001X

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.