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Title 42

Displaying title 42, up to date as of 7/16/2026. Title 42 was last amended 7/01/2026.
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  1. Title 42 —Public Health
  2. Chapter IV —Centers for Medicare & Medicaid Services, Department of Health and Human Services
  3. Subchapter B —Medicare Program
  4. Part 417 —Health Maintenance Organizations, Competitive Medical Plans, and Health Care Prepayment Plans
  5. Subpart K   View Full Text
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eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

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Title 42Public HealthPart / Section
Chapter IVCenters for Medicare & Medicaid Services, Department of Health and Human Services400 – 699
Subchapter BMedicare Program405 – 429
Part 417Health Maintenance Organizations, Competitive Medical Plans, and Health Care Prepayment Plans417.1 – 417.940
Subpart KEnrollment, Entitlement, and Disenrollment under Medicare Contract417.420 – 417.464
§ 417.420Basic rules on enrollment and entitlement.
§ 417.422Eligibility to enroll in an HMO or CMP.
§ 417.423Special rules: ESRD and hospice patients.
§ 417.424Denial of enrollment.
§ 417.426Open enrollment requirements.
§ 417.427Extending MA and Part D program disclosure requirements to section 1876 cost contract plans.
§ 417.428Marketing activities.
§ 417.430Application procedures.
§ 417.432Conversion of enrollment.
§ 417.434Reenrollment.
§ 417.436Rules for enrollees.
§ 417.440Entitlement to health care services from an HMO or CMP.
§ 417.442Risk HMO's and CMP's: Conditions for provision of additional benefits.
§ 417.444Special rules for certain enrollees of risk HMOs and CMPs.
§ 417.446 [Reserved]
§ 417.448Restriction on payments for services received by Medicare enrollees of risk HMOs or CMPs.
§ 417.450Effective date of coverage.
§ 417.452Liability of Medicare enrollees.
§ 417.454Charges to Medicare enrollees.
§ 417.456Refunds to Medicare enrollees.
§ 417.458Recoupment of uncollected deductible and coinsurance amounts.
§ 417.460Disenrollment of beneficiaries by an HMO or CMP.
§ 417.461Disenrollment by the enrollee.
§ 417.464End of CMS's liability for payment: Disenrollment of beneficiaries and termination or default of contract.
eCFR Content