42 CFR § 419.91 - Definitions.

---
identifier: "/us/cfr/t42/s419.91"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 419.91 - Definitions."
title_number: 42
title_name: "Public Health"
section_number: "419.91"
section_name: "Definitions."
chapter_name: "CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "MEDICARE PROGRAM"
part_number: "419"
part_name: "PROSPECTIVE PAYMENT SYSTEMS FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 1302, 1395l(t), and 1395hh."
regulatory_source: "65 FR 18542, Apr. 7, 2000, unless otherwise noted."
cfr_part: "419"
---


# 419.91 Definitions.

As used in this subpart—

*Rural emergency hospital or REH* means an entity as defined in § 485.502 of this chapter.

*Rural emergency hospital (REH) services* means all covered outpatient department (OPD) services, as defined in section 1833(t)(1)(B) of the Act, excluding services described in section 1833(t)(1)(B)(ii), furnished by an REH that would be paid under the outpatient prospective payment system (OPPS) when provided in a hospital paid under the OPPS for outpatient services, provided that such services are furnished consistent with the conditions of participation at §§ 485.510 through 485.544 of this chapter.