Nursing & Custodial Care Facilities / 311Z00000X
Non-Individual · classification
311Z00000X Custodial Care Facility
311Z00000X is the taxonomy code for Custodial Care Facility, in the NUCC group “Nursing & Custodial Care Facilities”. 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 311Z00000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 13
Definition
A facility providing care that serves to assist an individual in the activities of daily living, such as assistance in walking, getting in and out of bed, bathing, dressing, feeding, and using the toilet, preparation of special diets, and supervision of medication that usually can be self-administered. Custodial care essentially is personal care that does not require the continuing attention of trained medical or paramedical personnel.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 311Z00000X sits
- Group: Nursing & Custodial Care Facilities — code 6 of 13 in the group
- Classification: Custodial Care Facility 311Z00000X
This is the general code for Custodial Care Facility. 1 more specific code 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
311Z00000X 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
| Code | Custodial Care Facility — specializations |
|---|---|
| 311ZA0620X | Adult Care Home |
History of 311Z00000X
NUCC's notes record no dated changes for 311Z00000X. 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 311Z00000X 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:
- 261QA0005X Ambulatory Family Planning Facility (Ambulatory Health Care Facilities)
- 261QA0006X Ambulatory Fertility Facility (Ambulatory Health Care Facilities)
- 261QR0401X Comprehensive Outpatient Rehabilitation Facility (CORF) (Ambulatory Health Care Facilities)
- 320800000X Mental Illness Community Based Residential Treatment Facility (Residential Treatment Facilities)
- 320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility (Residential Treatment Facilities)
- 323P00000X Psychiatric Residential Treatment Facility (Residential Treatment Facilities)
Find providers with 311Z00000X
Using 311Z00000X
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.