Agencies / 251E00000X
Non-Individual · classification · Medicare specialty A4[11]
251E00000X Home Health Agency
251E00000X is the taxonomy code for Home Health, in the NUCC group “Agencies”. It is a code for organizations — the kind used on a Type 2 NPI. Medicare maps it to specialty A4[11], Home Health Agency (Subunit), under which 0 practitioners are enrolled, and to 1 other specialty listed below.
- 1Taxonomy code 251E00000X
- 2Level Classification
- 3Medicare specialty A4[11] Home Health Agency (Subunit)
- 4Codes in this group 15
Definition
A public agency or private organization, or a subdivision of such an agency or organization, that is primarily engaged in providing skilled nursing services and other therapeutic services, such as physical therapy, speech-language pathology services, or occupational therapy, medical social services, and home health aide services. It has policies established by a professional group associated with the agency or organization (including at least one physician and one registered nurse) to govern the services and provides for supervision of such services by a physician or a registered nurse; maintains clinical records on all patients; is licensed in accordance with State or local law or is approved by the State or local licensing agency as meeting the licensing standards, where applicable; and meets other conditions found by the Secretary of Health and Human Services to be necessary for health and safety.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 251E00000X sits
- Group: Agencies — code 6 of 15 in the group
- Classification: Home Health 251E00000X
Home Health has no specializations, so 251E00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 251E00000X to Medicare specialty A4[11] (Home Health Agency (Subunit)) and Medicare specialty A4[11] (Home Health Agency (Subunit)). 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
No other codes share the classification Home Health. The rest of Agencies is on the group page.
History of 251E00000X
NUCC's earliest recorded change to 251E00000X is from 2007 (definition added, source added).
- 2007-07-01 — definition added, source added
Similar codes in other groups
If 251E00000X 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:
- 163WH0200X Home Health Registered Nurse (Nursing Service Providers)
- 374U00000X Home Health Aide (Nursing Service Related Providers)
- 376G00000X Nursing Home Administrator (Nursing Service Related Providers)
- 171WH0202X Home Modifications Contractor (Other Service Providers)
- 364SH0200X Home Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers)
- 2278H0200X Home Health Certified Respiratory Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers)
Find providers with 251E00000X
Using 251E00000X
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.