Agencies / 251F00000X
Non-Individual · classification
251F00000X Home Infusion Agency
251F00000X is the taxonomy code for Home Infusion, in the NUCC group “Agencies”. It is a code for organizations — the kind used on a Type 2 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.
- 1Taxonomy code 251F00000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 15
Definition
NUCC publishes no definition for 251F00000X; the code is identified by its place in the tree below.
Where 251F00000X sits
- Group: Agencies — code 7 of 15 in the group
- Classification: Home Infusion 251F00000X
Home Infusion has no specializations, so 251F00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
251F00000X 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 — organizations of this type enroll, if at all, under a facility or supplier type rather than a practitioner specialty.
Related codes
No other codes share the classification Home Infusion. The rest of Agencies is on the group page.
History of 251F00000X
NUCC's notes record no dated changes for 251F00000X. 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 251F00000X 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)
- 163WI0500X Infusion Therapy 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)
Find providers with 251F00000X
Using 251F00000X
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.