45 CFR 162.406 : Public Welfare (Part 1 To Parts 2557-2599) — (Part 1 To Parts 171-199) — Department Of Health And Human Services (Part 1 To Parts 171-199) — Administrative Data Standards And Related Requirements (§ 160.101 To Parts 165-169) — Administrative Requirements (§ 162.100 To § 162.1902) — Standard Unique Health Identifier For Health Care Providers (§ 162.402 To § 162.414) — Standard unique health identifier for health care providers.