14.2 Government Programs: Medicare, Medicaid, TRICARE & Workers' Comp

14.2 Government Programs: Medicare, Medicaid, TRICARE & Workers' Comp

Publicly funded and government-mandated health insurance programs provide healthcare access to millions of elderly, disabled, low-income, military, and occupationally injured individuals across the United States. In the outpatient clinical setting, the Certified Medical Assistant (CMA) must navigate complex statutory regulations, specific enrollment criteria, distinct coverage rules, and specialized documentation requirements governing Medicare, Medicaid, TRICARE, CHAMPVA, and Workers' Compensation.

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1. Medicare: The Federal Health Insurance Program

Established in 1965 under Title XVIII of the Social Security Act, Medicare is a federally administered health insurance program overseen by the Centers for Medicare & Medicaid Services (CMS), an agency of the U.S. Department of Health and Human Services (HHS).

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|                                 MEDICARE ELIGIBILITY CRITERIA                                    |
+--------------------------------------------------------------------------------------------------+
| 1. AGE 65 OR OLDER: U.S. citizens or permanent legal residents who have lived in the U.S.       |
|    continuously for at least 5 consecutive years.                                                |
|                                                                                                  |
| 2. PERMANENT DISABILITY (UNDER AGE 65): Individuals entitled to Social Security Disability       |
|    Insurance (SSDI) benefits who have received cash payments for at least 24 consecutive months. |
|                                                                                                  |
| 3. END-STAGE RENAL DISEASE (ESRD): Individuals of any age with permanent kidney failure         |
|    requiring chronic maintenance hemodialysis, peritoneal dialysis, or kidney transplantation.   |
|                                                                                                  |
| 4. AMYOTROPHIC LATERAL SCLEROSIS (ALS): Individuals diagnosed with Lou Gehrig's disease          |
|    qualify immediately in the first month they receive SSDI payments (24-month wait waived).    |
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The Four Distinct Parts of Medicare

Medicare is structured into four functional components, each covering specific categories of medical goods and clinical services:

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|                                    THE FOUR PARTS OF MEDICARE                                    |
+--------------------+--------------------------------+--------------------------------------------+
| Part               | Primary Coverage Scope         | Financing & Cost-Sharing Mechanism         |
+--------------------+--------------------------------+--------------------------------------------+
| Part A             | Inpatient hospital care, SNF   | Premium-free for individuals with 40 work  |
| (Hospital Ins.)    | (up to 100 days), hospice care,| quarters (10 years) of FICA taxes. Subject |
|                    | home health services.          | to per-benefit-period deductible & copays. |
+--------------------+--------------------------------+--------------------------------------------+
| Part B             | Outpatient physician visits,   | Voluntary; monthly premium deducted from   |
| (Medical Ins.)     | preventive care, lab tests,    | Social Security check. Annual deductible + |
|                    | DME, outpatient therapies.     | standard 80/20 coinsurance on allowed fees.|
+--------------------+--------------------------------+--------------------------------------------+
| Part C             | Managed care plans (HMO/PPO)   | Private plans approved by CMS that replace |
| (Medicare Adv.)    | bundling Parts A, B, and       | Original Medicare; beneficiary pays Part B |
|                    | usually Part D coverage.       | premium plus optional plan premium.        |
+--------------------+--------------------------------+--------------------------------------------+
| Part D             | Outpatient prescription drug   | Delivered via private stand-alone PDPs or  |
| (Prescription Ins.)| coverage across tiered         | MA-PD plans. Monthly premium, deductible,  |
|                    | formularies.                   | tiered copays, and coverage gap.           |
+--------------------+--------------------------------+--------------------------------------------+

1. Medicare Part A (Hospital Insurance)

• Inpatient Acute Hospital Care: Covers room, board, nursing care, surgical suites, medications, and diagnostic tests administered during an inpatient hospital stay based on a 60-day benefit period (which begins the day of admission and ends when the beneficiary has been out of the hospital or SNF for 60 consecutive days).
• Skilled Nursing Facility (SNF) Care: Covers up to 100 days of skilled nursing and rehabilitative care per benefit period, provided the admission is preceded by a qualifying 3-consecutive-day inpatient hospital stay. Days 1–20 are covered at 100%; Days 21–100 require a daily coinsurance copayment; beyond Day 100, the patient pays 100%.
• Hospice Care: Comprehensive palliative and supportive medical, nursing, and counseling services for terminally ill beneficiaries with a certified medical prognosis of 6 months or less to live.
• Financing: Funded through mandatory federal payroll taxes (FICA). Beneficiaries who accumulated at least 40 work quarters (10 years) of Medicare-covered employment receive Part A premium-free.

2. Medicare Part B (Medical / Outpatient Insurance)

• Outpatient Services: Covers medical provider encounters in clinics and outpatient departments, diagnostic laboratory tests (blood panels, urinalysis, biopsies), diagnostic imaging (X-rays, CT, MRI), outpatient surgeries, physical and occupational therapy, ambulance transportation, and Durable Medical Equipment (DME) (e.g., wheelchairs, hospital beds, oxygen concentrators, nebulizers, walkers).
• Financing & Cost-Sharing: Part B is voluntary. Beneficiaries pay a standard monthly premium (often deducted directly from their Social Security monthly benefit checks). Coverage includes an annual deductible, after which Medicare pays 80% of the Medicare allowed amount, and the patient is responsible for 20% coinsurance.

3. Medicare Part C (Medicare Advantage)

• Private Managed Care Option: Medicare Advantage plans are offered by private commercial health insurers (e.g., Humana, UnitedHealthcare, Aetna, Blue Cross Blue Shield) approved and subsidized by CMS.
• Replaces Original Medicare: When a beneficiary elects Part C, the private managed care plan (HMO, PPO, or Private Fee-for-Service) takes over administration of all Part A and Part B benefits. Most Part C plans bundle prescription drug coverage (Part D) into a comprehensive Medicare Advantage Prescription Drug (MA-PD) plan and offer supplemental wellness benefits not covered by Original Medicare (such as routine dental, vision, hearing aids, and gym memberships).
• Financing: Beneficiaries must continue paying their standard Part B monthly premium and may pay an additional premium to the private Advantage plan.

4. Medicare Part D (Prescription Drug Coverage)

• Outpatient Prescription Drug Benefit: Available to all Medicare beneficiaries through private insurance companies under CMS contract. Beneficiaries can enroll in a stand-alone Prescription Drug Plan (PDP) to complement Original Medicare or obtain drug coverage through an MA-PD plan.
• Drug Formularies & Tiers: Plans utilize tiered drug formularies (Tier 1: Preferred Generics with lowest copay; Tier 2: Non-Preferred Generics; Tier 3: Preferred Brands; Tier 4: Non-Preferred Brands; Tier 5: Specialty Biologics with coinsurance percentage).
• The Coverage Gap ("Donut Hole"): A temporary limit on what the drug plan will cover. Once the beneficiary and plan spend a federally designated threshold on covered drugs during a calendar year, the beneficiary enters the coverage gap, paying a federally capped percentage (e.g., 25%) for brand and generic medications until their out-of-pocket costs reach the catastrophic coverage threshold, where the plan covers 100%.

Medicare Provider Participation: PAR vs. Non-PAR

Healthcare providers must establish their enrollment status with Medicare, which dictates billing rules, payment amounts, and balance-billing allowances:

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|                       MEDICARE PARTICIPATING (PAR) VS. NON-PARTICIPATING (NON-PAR)               |
+-------------------+--------------------------------+---------------------------------------------+
| Feature           | Participating Provider (PAR)   | Non-Participating Provider (Non-PAR)        |
+-------------------+--------------------------------+---------------------------------------------+
| Assignment Rule   | Must accept assignment on all  | Can choose assignment on a claim-by-claim   |
|                   | Medicare claims (100% of cases)| basis for each encounter.                   |
+-------------------+--------------------------------+---------------------------------------------+
| Reimbursement     | Receives 100% of the Medicare  | Receives 95% of the standard MPFS allowed   |
| Fee Schedule Rate | Physician Fee Schedule (MPFS). | amount from Medicare.                       |
+-------------------+--------------------------------+---------------------------------------------+
| Claim Submission  | Medicare pays the 80% benefit  | Unassigned: Patient pays provider directly; |
| & Payment Flow    | directly to the provider.      | Medicare sends the 80% check to patient.    |
+-------------------+--------------------------------+---------------------------------------------+
| Balance Billing & | Zero balance billing allowed;  | May charge up to the "Limiting Charge"      |
| Limiting Charge   | must write off contractual diff| (115% of the non-PAR allowed rate).         |
+-------------------+--------------------------------+---------------------------------------------+

The Advance Beneficiary Notice of Noncoverage (ABN / Form CMS-R-131)

The Advance Beneficiary Notice of Noncoverage (ABN) is a standardized written legal notice issued to Fee-for-Service Medicare beneficiaries in specific outpatient clinical situations:

1. Mandatory Timing & Execution: The ABN must be presented to the patient, thoroughly explained by clinical staff, and signed BEFORE the provider performs a service, test, or procedure that Medicare normally covers but is expected to be denied in this specific instance due to lack of medical necessity (e.g., frequency limits exceeded, such as an HbA1c test ordered more frequently than CMS coverage guidelines allow, or a screening test performed outside diagnostic guidelines).
2. Required Form Elements: The ABN must explicitly state the exact diagnostic test or procedure to be performed, the specific clinical reason why Medicare is expected to deny payment, and an accurate, good-faith estimated dollar cost for the service.
3. Patient Option Selection: The patient must independently select and check one of three standard options on the form:
   • Option 1: The patient wants the test/procedure performed. The clinic will submit the claim to Medicare. If Medicare denies the claim, the patient legally agrees to pay the clinic out-of-pocket and retains full legal rights to appeal the denial to Medicare.
   • Option 2: The patient wants the test/procedure performed. The clinic will not submit a claim to Medicare, and the patient pays out-of-pocket upfront at the time of service. The patient forfeits the right to appeal to Medicare.
   • Option 3: The patient refuses the proposed test or procedure. No service is rendered, no claim is billed, and the patient owes zero dollars.
4. CRITICAL LEGAL & FINANCIAL RULE: If a provider fails to issue a properly executed, signed ABN to the beneficiary prior to rendering a non-covered service, and Medicare subsequently denies the claim for lack of medical necessity, the provider is legally prohibited from billing the patient. The medical practice must absorb the entire financial cost as an uncollectible loss.

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2. Medicaid: Public Assistance Healthcare

Enacted under Title XIX of the Social Security Act in 1965, Medicaid is a joint federal and state assistance program that provides comprehensive health coverage to low-income individuals, families with dependent children, pregnant women, the elderly, and individuals with disabilities.

Structure & Funding

• Joint Federal-State Partnership: The federal government establishes broad baseline regulatory mandates and provides matching funds (Federal Medical Assistance Percentage - FMAP), while individual states administer their own Medicaid programs, establishing specific income eligibility thresholds, covered benefit packages, and provider reimbursement schedules. Consequently, Medicaid rules vary substantially from state to state.
• The Payer of Last Resort Principle: Under federal statutory law, Medicaid is designated as the Payer of Last Resort. If a Medicaid beneficiary has any other third-party healthcare coverage (such as a commercial employer group plan, individual policy, Medicare, automobile liability, or workers' compensation), that other payer is always primary. All other coverage must be billed, adjudicated, and paid first; Medicaid is billed last, and will only pay remaining balances up to state-mandated Medicaid fee schedule maximums.
• Dual Eligibility ("Medi-Medi"): Beneficiaries who qualify for both Medicare (due to age or disability) and Medicaid (due to low income) are classified as dual-eligible or "Medi-Medi" patients. Medicare is always the primary payer for all covered Part A and Part B medical services. Medicaid acts as the secondary payer, covering Medicare annual deductibles, 20% coinsurance, monthly premiums, and additional Medicaid-covered services excluded by Medicare (such as long-term nursing home custodial care and routine dental care). Providers treating Medi-Medi patients must accept assignment and are strictly prohibited from balance-billing the patient.

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3. Military Healthcare Programs: TRICARE & CHAMPVA

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|                              MILITARY HEALTHCARE COVERAGE COMPARISON                             |
+-------------------+--------------------------------+---------------------------------------------+
| Program           | Eligibility Scope              | Delivery Models & Key Program Rules         |
+-------------------+--------------------------------+---------------------------------------------+
| TRICARE           | Active duty service members,   | - TRICARE Prime: Managed care HMO with PCM; |
| (DoD Program)     | military retirees, and their   |   mandatory for active duty personnel.      |
|                   | eligible registered dependents.| - TRICARE Select: PPO/FFS; self-referrals.  |
|                   |                                | - TRICARE For Life (TFL): Wraparound for    |
|                   |                                |   retirees 65+ with Medicare Parts A & B.   |
+-------------------+--------------------------------+---------------------------------------------+
| CHAMPVA           | Spouses and dependent children | - Comprehensive fee-for-service coverage    |
| (VA Program)      | of veterans who are 100%       |   administered directly through the VA.     |
|                   | permanently/totally disabled   | - Strictly mutually exclusive: Individuals  |
|                   | or died from service injuries. |   eligible for TRICARE CANNOT get CHAMPVA.  |
+-------------------+--------------------------------+---------------------------------------------+

TRICARE

Administered by the Department of Defense (DoD) Defense Health Agency (DHA), TRICARE covers active duty uniformed service members, National Guard/Reserve members, military retirees, and their eligible dependents registered in the Defense Enrollment Eligibility Reporting System (DEERS).

• TRICARE Prime: A managed care HMO model. Active duty service members are automatically enrolled. Enrollees are assigned a military or civilian Primary Care Manager (PCM) who manages all care and coordinates specialist referrals. Offers the lowest out-of-pocket costs with zero copays for active duty personnel.
• TRICARE Select: A self-managed, fee-for-service / PPO model. Enrollees can choose any TRICARE-authorized provider without a PCM referral, in exchange for annual deductibles and percentage cost-sharing.
• TRICARE For Life (TFL): A comprehensive secondary Medicare-wraparound benefit for military retirees aged 65 and older who are entitled to Medicare Part A and enrolled in Medicare Part B. Medicare pays primary, and TRICARE For Life pays remaining deductibles, copayments, and coinsurance.

CHAMPVA

The Civilian Health and Medical Program of the Department of Veterans Affairs (CHAMPVA) is a healthcare benefits program administered directly by the Department of Veterans Affairs (VA).

• Eligibility: Covers spouses and dependent children of veterans who have been rated by the VA as 100% permanently and totally disabled due to a service-connected disability, or surviving dependents of veterans who died from a service-connected disability or in the line of duty.
• Mutual Exclusivity: A person eligible for TRICARE is legally prohibited from receiving CHAMPVA benefits. If a military member retires and is eligible for TRICARE, their dependents must use TRICARE, not CHAMPVA.

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4. Workers' Compensation Insurance

Workers' Compensation is a state-mandated, employer-funded insurance program that provides medical care, wage replacement benefits, and vocational rehabilitation to employees who suffer job-related injuries or develop occupational illnesses.

Core Rules for Medical Assistants in Workers' Comp Cases

1. 100% Employer Financing & Zero Patient Billing: Workers' compensation is fully funded by employers through state insurance funds, commercial carriers, or self-insurance. Employees pay zero premiums. Participating medical providers are strictly prohibited by law from billing the injured patient for authorized medical evaluations, treatments, diagnostic tests, or therapy. All billing is submitted to the workers' compensation carrier according to state fee schedules.
2. Creation of a Completely Separate Medical Record: When an established patient presents with a work-related injury, the medical assistant must create a completely separate medical record and billing ledger dedicated solely to the workplace incident. Personal medical records containing unrelated health history (e.g., gynecological records, mental health history, prior non-work illnesses) must never be merged or disclosed to the employer or workers' comp adjuster without explicit, separate legal authorization.
3. Doctor's First Report of Occupational Injury or Illness: Following the initial clinical evaluation of a work-related injury, the physician and medical assistant must complete and submit the state-mandated Doctor's First Report of Injury form to the employer, the workers' compensation insurance carrier, and the state workers' compensation board within strict statutory deadlines (typically within 24 hours to 5 business days of the examination).
4. Progress Reports & Return-to-Work Documentation: Ongoing treatment requires regular submission of narrative progress reports and functional capacity evaluations defining work restrictions (e.g., light duty, lifting limits) to support wage replacement and return-to-work clearance.

Government Healthcare Programs Overview & Rules