All-Payer Claims Database (APCD)

Key facts

Run by

State agencies or organizations designated under state law

Typical contents

Eligibility, medical claims, pharmacy claims and provider files

Key court ruling

Gobeille v. Liberty Mutual (2016), ERISA preemption for self-funded plans

Federal support

Consolidated Appropriations Act, 2021: state grants, standard reporting format

What is an all-payer claims database?

An all-payer claims database (APCD) pools claims from many payers in one state into a single system. Contributors usually include commercial insurers, Medicaid managed care plans and Medicare Advantage plans, and some states also add Medicaid fee-for-service and Medicare fee-for-service data.

Most APCDs are created by state statute and operated by a state agency or a designated organization. Each state sets its own reporting rules, data layout, privacy protections and release policies, so APCDs vary widely in scope and access.

Many APCDs assign a de-identified person identifier that links claims across payers, so analysts can follow patients who change insurers, which single-payer data cannot do.

How APCD data is collected and released

State APCDs generally follow a similar pattern:

• Payers above a size threshold set by the state submit eligibility, medical, pharmacy and provider files on a regular schedule.
• The administrator validates, de-identifies and links the files into a common layout.
• The state publishes public reports, such as price transparency tools or spending dashboards.
• Researchers and organizations apply for more detailed extracts, usually under a data use agreement and state review, and sometimes pay a fee.

Why APCDs matter

APCDs are one of the few sources of commercial insurance claims outside proprietary datasets. States use them to study cost growth, price variation across hospitals and the effects of policy changes. Researchers, employers and policy analysts use them to compare prices and utilization across payers in the same market.

For market analysts, an APCD can show commercial procedure volume and pricing in a state, which Medicare public use files cannot. Access rules differ by state, and some states restrict commercial uses of the data.

Gaps in APCD coverage

The biggest gap comes from self-funded employer plans. In Gobeille v. Liberty Mutual Insurance Co. (2016), the U.S. Supreme Court held that the Employee Retirement Income Security Act (ERISA) preempted a Vermont reporting law as applied to a self-funded ERISA plan, so states cannot require those plans to submit data. Their participation is voluntary.

The Consolidated Appropriations Act, 2021 authorized federal grants to help states build or improve APCDs and called for a standardized reporting format that self-funded plans can use voluntarily. APCDs also generally miss uninsured and cash-pay care and often lack data from federal programs such as TRICARE and the Veterans Health Administration.