Skip to main content

An official website of the United States government

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

CMS.gov
Centers for Medicare & Medicaid Services

CMS Newsroom

Header
  • About CMS
  • Newsroom
  • Data & Research

Search CMS.gov

Popular terms
  • Physician Fee Schedule
  • Local Coverage Determination
  • Medically Unlikely Edits
  • Telehealth
  • Covid-19

CMS.gov main menu

  • Medicare
    Back to main menu

    section title h2

    • Enrollment & renewal
      Back to menu

      section title h3

      • Original Medicare (Part A and B) Eligibility and Enrollment
      • Annual Medicare Participation Announcement
      • Providers & suppliers
      • Medicare Managed Care Eligibility and Enrollment
      • Part D Eligibility and Enrollment
      • Health plans
    • Coverage
      Back to menu

      section title h3

      • Coverage Determination Process
      • Medicare Coverage Database
      • Approved facilities, trials, & registries
      • Telehealth
      • Medicare Summary Notice
      • Prescription drug coverage contracting
      • Coverage with evidence development
      • Investigational device exemption studies
      • Prescription drug coverage
      • Drug coverage claims data
      • Dental coverage
      • Preventive Services
      • Medicare Coverage Center
      • End Stage Renal Disease (ESRD) Center
      • Ambulances Services Center
    • Regulations & guidance
      Back to menu

      section title h3

      • Manuals
      • Transmittals
      • CMS Records Schedule
      • Medicare Fee-for-Service payment regulations
      • National Provider Identifier Standard (NPI)
      • Advisory committees
      • Legislation
      • Promoting Interoperability Programs
      • CMS rulemaking
      • CMS Hearing Officer
      • Office of the Attorney Advisor (OAA)
      • Provider Reimbursement Review Board (PRRB)
      • Medicare Geographic Classification Review Board (MGCRB)
      • Physician Self-Referral
      • Quarterly provider updates
      • E-Prescribing
    • Coding & billing
      Back to menu

      section title h3

      • Place of service codes
      • ICD-10 codes
      • Healthcare Common Procedure Coding System (HCPCS)
      • Integrated Outpatient Code Editor
      • National Correct Coding Initiative (NCCI) edits
      • NCCI for Medicaid
      • Electronic billing
      • Medicare Administrative Contractors (MACs)
      • Provider Customer Service Program
      • Skilled Nursing Facility (SNF) consolidated billing
      • Roster billing
      • Therapy services
      • Medicare claims & public health emergencies
      • Guide for Medical Technology Companies and Other Interested Parties
    • Payment
      Back to menu

      section title h3

      • Medicare Part B Drug Average Sales Price
      • All Fee-For-Service-Providers
      • Fee schedules
      • Prospective Payment Systems
      • Opioid Treatment Programs (OTP)
      • Covid-19 Vaccine Toolkit
      • Bankruptcy
      • Sustainable Growth Rates & Conversion Factors
      • Medicare Advantage Rates & Statistics
    • Medicare-Medicaid coordination
      Back to menu

      section title h3

      • Qualified Medicare beneficiary program
      • Resources
      • Qualified Medicare beneficiary program
      • Spotlight
      • Events
      • Financial alignment initiative
      • Initiative to reduce avoidable hospitalizations
      • Reports & Guidance
      • Program of All-Inclusive Care for the Elderly (PACE)
      • Reporting Fraud
      • Resources for Medicare-Medicaid plans
      • Resources for state Medicaid agencies
      • Healthcare Fraud Prevention Partnership
      • Clinical Templates
    • Appeals & grievances
      Back to menu

      section title h3

      • Original Medicare appeals
      • Managed Care appeals & grievances
      • Medicare Prescription drug appeals & grievances
      • Ombudsman Center
      • Appeals Decision Search (Part C & Part D)
    • Quality
      Back to menu

      section title h3

      • Value-based programs
      • Person & Family Engagement
      • Quality improvement organizations
      • Nursing home quality improvement
      • Inpatient Rehabilitation Facility (IRF) Quality Reporting Program (QRP)
      • Home Health Quality Reporting Program
      • ESRD Quality Incentive Program
      • CMS National Quality Strategy
      • Hospice Quality Reporting Program
      • Long-Term Care Hospital (LTCH) Quality Reporting Program (QRP)
      • Appropriate Use Criteria Program
      • Quality measures
      • Clinical Laboratory Improvement Amendments (CLIA)
      • Medicare Advantage quality improvement program
      • Physician compare initiative
      • Quality initiatives
      • Part C and D Performance Data
      • Skilled Nursing Facility (SNF) Quality Reporting Program (QRP)
    • Health & safety standards
      Back to menu

      section title h3

      • Quality, Safety & Oversight Group (QSOG)
      • Quality, safety & oversight general information
      • Accreditation programs
      • Civil monetary penalties
      • Emergency preparedness
      • State survey agencies
      • Certification & compliance
      • Enforcement
      • Regulations, Certification, & Compliance
      • Promising practices project
      • Quality, Safety & Education division (QSED)
      • Conditions for coverage & participation
    • Employers & plan sponsors
      Back to menu

      section title h3

      • Creditable coverage
    • IC-Placeholder-1
    • Audits & Compliance
      Back to menu

      section title h3

      • Part A cost report audit
      • Part C/Part D compliance & audits
    • Forms & notices
      Back to menu

      section title h3

      • CMS forms
      • CMS forms list
      • Beneficiary Notices Initiative (BNI)
    • Health & drug plans
      Back to menu

      section title h3

      • Plan payment
      • Plan payment data
      • Medical loss ratio
      • Coverage Gap Discount Program
      • Managed care marketing
      • Medicare Advantage application
      • Medigap (Medicare supplement health insurance)
      • Medical Savings Account (MSA)
      • Private Fee-for-Service Plans
      • Health Care Prepayment Plans (HCPPs)
      • Cost plans
      • Special needs plans
      • Network adequacy
    • Coordination of benefits & recovery
      Back to menu

      section title h3

      • Overview
      • Mandatory Insurer Reporting for Group Health Plans (GHP)
      • Mandatory insurer reporting (NGHP)
      • Workers' comp Medicare set aside arrangements
      • Attorney services
      • Beneficiary services
      • COBA Trading Partners
      • Employer services
      • Insurer services
      • Prescription drug assistance programs
      • Provider services
    • Settlements
      Back to menu

      section title h3

      • Jimmo Settlement
      • Ryan Settlement
  • Medicaid/CHIP
    Back to main menu

    section title h2

    • What is Medicaid?
      Back to menu

      section title h3

      • Visit Medicaid.gov
      • View Medicaid maps
      • Visit CHIP.gov
    • Medicare-Medicaid Coordination
      Back to menu

      section title h3

      • Integrated care resources
      • Initiative to reduce avoidable hospitalizations
      • Financial alignment initiative
      • Medicaid Integrity Institute
    • RG-Placeholder-1
    • IC-Placeholder-2
  • Marketplace & Private Insurance
    Back to main menu

    section title h2

    • About the Marketplace
      Back to menu

      section title h3

      • Marketplace oversight
      • Affordable Care Act
      • Overview of the exchanges
      • Exchange coverage maps
      • Medicare and the Marketplace
    • Private Health Insurance
      Back to menu

      section title h3

      • Patient’s Bill of Rights
      • Medical loss ratio
      • Annual limits
      • Review of insurance rates
      • Market rating
      • Self-funded, non-federal governmental plans
      • Grandfathered plans
      • Health Reimbursement Arrangements
      • Coverage for young adults
      • Student health plans
      • Mental health parity and addiction equity
      • Prevention
      • Consumer protections & enforcement
      • Pre-existing condition insurance plan
      • Qualifying Health Coverage (QHC)
    • RG-Placeholder-2
    • In-person assisters
      Back to menu

      section title h3

      • Information for Partners
      • Assister outreach & education
      • Applications, forms, & notices
      • Assister programs & procedures
      • Assister technical resources
      • Assister training & webinars
    • Agents & Brokers
      Back to menu

      section title h3

      • Resources for Agent & Brokers
      • Registration & training
      • Open enrollment
      • Direct enrollment partners
      • General resources
      • Video Learning Center
      • Agent & Broker FAQ
      • Marketplace help desk & call centers
      • Registration Completion List
      • Marketplace Registration Tracker
      • AB Suspension & Termination List
      • Find local help
      • Issuer and direct enrollment partner directory
      • Help on demand
      • SHOP Resources
    • Health Plans & Issuers
      Back to menu

      section title h3

      • Qualified health plan certification
      • Summary of benefits & coverage
      • Insurance programs
      • Premium stabilization programs
      • Health insurance market reforms
      • Minimum essential coverage
      • Drug pricing & rebate review
    • Employers & sponsors
      Back to menu

      section title h3

      • Coverage
      • Regulation & guidance
      • Small business tax credit & premium assistance
      • Appeals
      • Small Business Health Options Program (SHOP)
      • Early retiree reinsurance program
      • Employer initiatives
    • States
      Back to menu

      section title h3

      • Planning & establishing a Marketplace
      • Territory cooperative agreements
      • Early innovator program
      • State flexibility to stabilize the Market
      • Exchange establishment grants
      • Pre-existing condition insurance plan
    • Resources
      Back to menu

      section title h3

      • About Us
      • Data resources
      • Forms, reports, & other resources
      • Letters
      • Regulations & Guidance
      • Training resources
  • Priorities
    Back to main menu

    section title h2

    • Innovation Center
      Back to menu

      section title h3

      • Overview
      • About
      • Key Concepts
      • Model Data
      • Value-Based Care Spotlight
      • Innovation Models
      • Where Innovation is Happening
      • Evaluations & Research Reports
    • Health Equity
      Back to menu

      section title h3

      • Coverage to Care
      • Minority health
      • Cobertura de atención
      • Grants & awards
    • Recent Legislation
      Back to menu

      section title h3

      • Inflation Reduction Act and Medicare
      • No Surprises Act
    • Key Initiatives
      Back to menu

      section title h3

      • Opioids
      • Flu
      • Medicare Open Enrollment
      • Medicare OE partner resources
      • Marketplace Open Enrollment
      • E-health
      • Open Payments
      • Returning to regular operations after COVID-19
      • Healthplan price transparency
      • Burden Reduction
        • About OHEI
        • Stakeholder Engagement
        • Administrative Simplification
        • Interoperability
        • Optimizing Care Delivery Framework
        • Spotlight
        • Contact OHEI
      • Hospital price transparency
      • Nursing Home Careers
      • Lookup tools
    • Your Patient Rights
      Back to menu

      section title h3

      • Emergency Room Rights
      • Medical bill rights
  • Training & Education
    Back to main menu

    section title h2

    • CMS National Training Program
      Back to menu

      section title h3

      • National Training Program resources
      • Class modules
    • Partner outreach resources
      Back to menu

      section title h3

      • Partner with CMS
      • National Medicare Education Program (NMEP)
      • Low-Income Subsidy (LIS) outreach
      • Become a champion for coverage
      • Faith-Based Partners
      • Rural Health Partners
      • American Indian/Alaska Native
      • Partnering with CMS Center
    • Medicare Learning Network® (MLN)
      Back to menu

      section title h3

      • Resources & training
      • Newsletter
      • Compliance
      • Partnerships
    • CMS Open Door Forums
      Back to menu

      section title h3

      • About Open Door Forums
      • Ambulance
      • End-Stage Renal Disease (ESRD) Dialysis Facility Care Compare
      • Home Health, Hospice & Durable Medical Equipment (DME)
      • Hospital
      • Long-Term Services & Supports
      • Physicians, Nurses and Allied Health Professionals
      • Rural Health
      • Skilled Nursing Facilities (SNFs)/Long-Term Care
      • Special Open Door forums
    • Look up topics
      Back to menu

      section title h3

      • Medicare
      • Medicaid
      • CHIP
      • American Indian/Alaska Native Center
      • Quality of care
      • Special populations
      • Fraud & abuse
      • States
      • Privacy
      • Health conditions & campaigns
      • New Medicare Card
      • HIPAA Administrative Simplification
    • Learn More
      Back to menu

      section title h3

      • Attend events
      • Find resources
      • Get training
      • Find tools to help you help others
      • Get digital media
    • Find your provider type
      Back to menu

      section title h3

      • Physicians & other health professionals
      • Facilities
      • Health & drug plans
      • Employers & unions
  • Back to Internet-Only Manuals (IOMs)

100-05

Dynamic List Information
Dynamic List Data
Publication #
100-05
Title
Medicare Secondary Payer Manual

Downloads

  • Chapter 1 - General MSP Overview
  • Chapter 1 Crosswalk
  • Chapter 2 - MSP Provisions
  • Chapter 2 Crosswalk
  • Chapter 3 - MSP Provider, Physician, and Other Supplier Billing Requirements
  • Chapter 3 Crosswalk
  • Chapter 4 Crosswalk
  • Chapter 4 - Coordination of Benefits Contractor (COBC) Requirements
  • Chapter 5 - Contractor MSP Claims Prepayment Processing Requirements
  • Chapter 5 Crosswalk
  • Chapter 5.1 - ECRS Web User Guide
  • Chapter 5.2 - ECRS Quick Reference Card
  • Chapter 6 - Medicare Secondary Payer (MSP) CWF Process
  • Chapter 6 Crosswalk
  • Chapter 7 – MSP Recovery
  • Chapter 8 - Affiliated Contractor Interaction with Medicare Secondary Payer (MSP) Recovery Audit Contractors (RACs)

Get email updates

Sign up to get the latest information about your choice of CMS topics. You can decide how often to receive updates.

CMS & HHS Websites
  • Medicare.gov
  • Medicaid.gov
  • InsureKidsNow.gov
  • HealthCare.gov
  • HHS.gov
  • HHS.gov/Open
About CMS
  • About Us
  • Careers
  • Newsroom
  • Blog
Tools
  • Acronyms
  • Archive
  • Contacts
  • Glossary
Helpful Links
  • Privacy Policy
  • Plain Language
  • Privacy Settings
  • Nondiscrimination & Accessibility
  • Developer Information
  • Vulnerability Disclosure Policy
USA Government Sites
  • Freedom of Information Act
  • No Fear Act
  • Inspector General
  • USA.gov
CMS.gov HHS Logo

Connect with CMS

  • Linkedin link
  • Youtube link
  • Facebook link
  • Twitter link
  • RSS Feed link

A federal government website managed and paid for by the U.S. Centers for Medicare & Medicaid Services.

7500 Security Boulevard, Baltimore, MD 21244