Chapter 1 — Further Reading

Sources are grouped by how much confidence to place in them. Tier 1 are works and institutions we are confident exist and can stand behind. Tier 2 are real practices and benchmarks whose exact current values we have not pinned down — treat every number in them as something to verify. Tier 3 are the constructed teaching materials in this book, labeled where they appear.

Tier 1 — Verified canonical sources

Centers for Medicare & Medicaid Services (CMS), cms.gov. The single most important bookmark you will make. Everything CMS publishes about payment, coverage, coding, and program integrity is free. Start with the Medicare Learning Network (MLN) educational products, which are written for practitioners rather than lawyers and are the best free introduction to nearly every topic in this book.

Medicare Claims Processing Manual (CMS Publication 100-04). The operational rulebook: what goes on a claim, how it is processed, what each field means, and what the contractor does with it. It is enormous and you will never read it cover to cover. Learn to search it. Chapters 25 and 26 of this book cite it repeatedly.

Hospital Price Transparency rule, 45 C.F.R. Part 180, and the CMS hospital price transparency resource pages. The subject of Case Study 1. Read the requirements themselves rather than a summary of them; they are short and clear.

No Surprises Act — Consolidated Appropriations Act, 2021, Division BB, Title I, and the implementing regulations issued jointly by the Departments of Health and Human Services, Labor, and the Treasury. The subject of Case Study 2. Verify the current state of the rules and the litigation before relying on any description, including this book's.

CMS "No Surprises" and "Ending Surprise Medical Bills" resource pages. The patient-facing and provider-facing guidance, including model notices. If your organization must give a notice, use the model.

National Uniform Claim Committee (NUCC), nucc.org. Maintains the CMS-1500 and publishes the 1500 Health Insurance Claim Form Reference Instruction Manual — free, authoritative, and the actual answer to "what goes in box 17b?" Chapter 25.

National Uniform Billing Committee (NUBC). Maintains the UB-04 and the institutional code sets (type of bill, revenue codes, condition, occurrence, and value codes). Note that the Official UB-04 Data Specifications Manual is a paid publication; the committee's public materials and CMS's manual chapters cover much of the same ground free. Chapter 26.

Office of Inspector General, U.S. Department of Health and Human Services, oig.hhs.gov. The Work Plan, the compliance program guidance documents, the exclusions database, and the published enforcement actions. The compliance guidance is the source of the principle in §1.6 that coding staff should not be evaluated against revenue targets.

False Claims Act, 31 U.S.C. §§ 3729–3733. Short, readable, and the statute under which most healthcare fraud enforcement actually happens. Read the definition of "knowingly" in § 3729(b)(1) — it is the sentence that makes reckless disregard sufficient, and it is why §1.4 says what it says.

Tier 2 — Attributed, specifics unverified

Healthcare Financial Management Association (HFMA), hfma.org. The professional body for healthcare finance. Its MAP Keys are the most widely used standard definitions for revenue cycle metrics — days in AR, initial denial rate, net collection rate, cost to collect. If your organization measures something differently from the way this book describes it in Chapter 31, a MAP Key definition is usually the reason. Some material is members-only.

AAPC, aapc.com, and the American Health Information Management Association (AHIMA), ahima.org. The two credentialing bodies. Both publish substantial free educational material, both run large practitioner communities, and both have local chapters that are genuinely useful for someone entering the field. Chapter 39 covers what each credential is for.

Published denial-rate and revenue-cycle benchmarks. Numerous vendors, associations, and consultancies publish annual figures on initial denial rates, first-pass resolution, days in AR, and cost to collect. They are useful for orientation and dangerous as targets, because the denominators differ, the populations differ enormously by specialty and payer mix, and vendors have an interest in the direction of the number. Measure your own. Where this book gives a benchmark, treat it the same way.

Kaiser Family Foundation (KFF), kff.org, and the Peterson-KFF Health System Tracker. Independent analysis of health coverage, costs, medical debt, and surprise billing, with clear methodology sections. The most reliable free source for the population-level context behind Chapter 32.

Reporting on medical debt and hospital billing practices by outlets including KFF Health News and similar investigative organizations. Read it for the mechanisms it documents rather than for its figures, and follow the primary sources it cites.

Tier 3 — Illustrative and constructed (labeled in this book)

Accounts 22-7788 and 10-7789 — the emergency department bill (§1.1, §1.2). Charges \$4,522.00, allowed \$1,515.00, patient \$503.00, plan \$1,012.00. Constructed so that every figure resolves.

Account 10-4471 — the Encounter (§1.9 and every subsequent chapter). Northgate Family Medicine, Northfield Mutual Health Plan, and the entire hundred-day timeline are constructed.

Ridgeview Regional Medical Center and every fee, allowed amount, and payment rate in this chapter.

All are teaching constructions. None describes a real person, organization, or transaction.

If you read only three things after this chapter

1. The NUCC 1500 Reference Instruction Manual, even though the form does not appear until Chapter
2. Skim it now. It will make everything between here and there feel like it has a destination.
3. The OIG compliance program guidance for your setting — physician practice, hospital, or third- party biller. It is short, it is written in plain English, and it is the clearest statement of what an organization is expected to have in place.
4. Your own organization's payer contract summary, if you can get access to it. Nothing in this chapter becomes real until you have seen an actual allowed-amount schedule with your employer's name on it.