42 CFR § 426.557 - Optional provisions of the Board's decision.

---
identifier: "/us/cfr/t42/s426.557"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 426.557 - Optional provisions of the Board's decision."
title_number: 42
title_name: "Public Health"
section_number: "426.557"
section_name: "Optional provisions of the Board's decision."
chapter_name: "CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "MEDICARE PROGRAM"
part_number: "426"
part_name: "REVIEW OF NATIONAL COVERAGE DETERMINATIONS AND LOCAL COVERAGE DETERMINATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 1102 and 1871 of the Social Security Act (42 U.S.C. 1302 and 1395hh)"
regulatory_source: "68 FR 63716, Nov. 7, 2003, unless otherwise noted."
cfr_part: "426"
---


# 426.557 Optional provisions of the Board's decision.

When appropriate, the Board may limit a decision holding invalid a specific provision(s) of an NCD to specific clinical indications and for similar conditions.