Foundation: Health Insurance Fluency

Lesson 1: The five lines of business

When a payer says "we have 3.2M lives," the next question is always "across which lines?" The book of business determines the economics, the regulations, and almost every product decision.

Why ASO/ERISA matters more than most client engagement teams realize

Roughly 65% of employer-covered Americans are in self-funded (ASO) plans. The payer is administering the plan on behalf of the employer, who bears the claims risk. This matters for selling AI because:

• Decisions about coverage and policies often involve the employer.
• ERISA is federal law (DOL), not state — different appeals rules, different timelines.
• ASO contracts can carve out specific functions (PBM, behavioral health, utilization review) to specialized vendors. Your buyer may be the carve-out vendor, not the main payer.

Why MA is the center of gravity for healthcare AI right now

• ~33 million members and rising; over half of Medicare beneficiaries are now in MA.
• CMS pays plans a capitated PMPM, risk-adjusted — every HCC matters financially.
• STAR ratings (1–5 stars) drive bonus payments and benefit flexibility — 4+ stars unlocks substantial revenue.
• CMS-0057-F (the prior auth FHIR rule) applies to MA plans and forces interoperability investment.
• Margins compressed in 2024–2025 → urgent push for administrative cost reduction → AI budget.

Lesson 2: How money and claims flow

The simplified picture of how dollars move through US healthcare — every seller should be able to draw this on a whiteboard.

Fully-insured commercial

1. Employer + employee pay premium to payer.
2. Payer holds premium, pools risk across members.
3. Member receives care; provider submits claim (X12 837) to payer.
4. Payer adjudicates: applies eligibility, benefits, edits, criteria, policy.
5. Payer pays provider per the contracted rate; sends 835 remit.
6. Patient owes copay/coinsurance/deductible per plan design; receives EOB.
7. Payer's profit = premiums – claims – admin, regulated by MLR.

Medicare Advantage

1. Member chooses MA plan; CMS pays the plan a base PMPM, adjusted by the member's RAF score.
2. The PMPM is fixed regardless of how much care the member uses — the plan absorbs the variability.
3. Plan manages care: contracts with providers, manages UM, runs PA, processes claims.
4. If plan spends less than PMPM in aggregate, profit. If more, loss.
5. STAR ratings determine bonus payments and "rebate" dollars the plan uses for richer benefits.
6. Risk adjustment determines individual member PMPM — capturing every legitimate HCC is critical.

Provider-side cash flow (a hospital's perspective)

1. Service rendered. Charges captured into hospital billing system.
2. Coders translate documentation into ICD-10 (diagnoses) and ICD-10-PCS or CPT (procedures).
3. Pre-bill scrubbing checks for missing data, edit violations, eligibility issues.
4. Claim sent (837) to clearinghouse, then payer.
5. 277CA accepts or rejects at the front door.
6. Payer adjudicates; 835 remit returns with payment + adjustments + CARC/RARC reason codes.
7. Hospital posts payment, identifies denials, routes to AR/denials team.
8. Denials worked: corrected and resubmitted, appealed, or written off.

Lesson 3: AHIP — your table-stakes credential

AHIP (America's Health Insurance Plans) certification is the most universally recognized payer-side credential. Anyone selling into health plans should have it.

AHIP Core Certifications

• AHIP Medicare — the most-taken AHIP exam. Covers MA, Part D, Medicare basics, marketing/compliance rules. Required by many plans for anyone who interacts with Medicare-eligible prospects. ~$175, multi-hour online module + exam, annual recertification.
• AHIP Health Plan Operations — broader coverage of how plans work end-to-end. Stronger fit for vendor-side commercial teams.
• AHIP Fraud, Waste, and Abuse (FWA) Training — short, free, CMS-required for many roles.
• AHIP Health Plan Strategy & Management — exec-track program for leaders.

What AHIP signals (and doesn't)

AHIP says you understand how a payer is structured, how MA works, how plans market and stay compliant, and the basic vocabulary. It does not signal product expertise in any single use case — that's what Step 2 and Step 3 cover. But showing up to a payer meeting without it on your team is a credibility deficit you don't need to carry.

Lesson 4: Reading the documents — EOB, 835, 837 at conversational fluency

You don't need to write a claim parser. You need to recognize the documents fluently enough that when a customer pulls one up on screen, you nod along instead of squinting. This is the client engagement version of Builders Step 1.

The EOB — patient-facing

What every EOB has:

• Service description — usually plain language plus the CPT code.
• Amount billed — what the provider charged.
• Allowed amount — what the plan's contract allows.
• Plan paid — what insurance covered.
• Your responsibility — copay, coinsurance, deductible, non-covered.
• Notes / reason codes — explanation of any denial or write-off.

When a member complains about a "surprise bill" or a "denied claim," they're reading an EOB. AI that resolves these issues touches EOB data, member vocabulary, and benefit structure.

The 835 — payer-to-provider remittance

You don't need to parse it, but recognize:

• It's an X12 EDI file the payer sends back to the provider after adjudication.
• Each claim has a status (paid, denied, reversed) and amounts (billed, allowed, paid).
• Each adjustment has a CARC (Claim Adjustment Reason Code) explaining why money was taken off.
• The most-cited CARCs are 16 (missing info), 50 (medical necessity), 97 (bundled), 197 (no auth), 204 (not covered).

The 837 — provider-to-payer claim

• The claim itself, in EDI. Three flavors: 837P (professional/physician), 837I (institutional/hospital), 837D (dental).
• Contains member ID, provider ID (NPI, Tax ID), diagnosis codes, service lines with CPT/HCPCS + modifiers + units + charges.
• Pre-bill scrubbing AI checks the 837 for problems before it leaves the provider.

Lesson 5: The vocabulary drill — 25 acronyms you must own

Pick a number above zero of these you can't define cleanly on a call, and that's the number of credibility deductions you're taking per meeting. Memorize them.