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AB-2431 • 2026

Downcoding medical claims.

Downcoding medical claims.

Crime Education Healthcare
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Patel
Last action
2026-05-14
Official status
In committee: Held under submission.
Effective date
Not listed

Plain English Breakdown

The official source does not provide specific details about costs or enforcement actions.

Downcoding Medical Claims

AB-2431 stops health care service plans and insurers from automatically lowering payments to doctors without reviewing patient information first.

What This Bill Does

  • Prohibits health care service plans and insurers from using automated processes to downcode medical claims.
  • Requires a documented review of clinical information before changing the payment amount for a claim.
  • Sets rules about how claims can be downcoded and what information must be given to doctors if their payments are lowered.
  • Prevents targeted or discriminatory downcoding against providers who treat patients with high acuity, complex, or chronic conditions.

Who It Names or Affects

  • Health care service plans
  • Insurance companies
  • Doctors and other health care providers

Terms To Know

Downcoding
When a payer changes the code for a medical service to one that pays less money.
Health care service plan
A company that provides health insurance coverage.

Limits and Unknowns

  • The bill does not specify how much it will cost or who will pay for the new rules.
  • It is unclear what actions departments can take against plans or insurers that break these rules.
  • There are no details on when this law will start.

Bill History

  1. 2026-05-14 California Legislative Information

    In committee: Held under submission.

  2. 2026-05-06 California Legislative Information

    In committee: Set, first hearing. Referred to APPR. suspense file.

  3. 2026-04-13 California Legislative Information

    Re-referred to Com. on APPR. pursuant to Assembly Rule 96.

  4. 2026-04-13 California Legislative Information

    Re-referred to Com. on P. & C.P.

  5. 2026-04-09 California Legislative Information

    Read second time and amended.

  6. 2026-04-08 California Legislative Information

    From committee: Amend, and do pass as amended and re-refer to Com. on P. & C.P. (Ayes 16. Noes 0.) (April 7).

  7. 2026-03-09 California Legislative Information

    Referred to Coms. on HEALTH and P. & C.P.

  8. 2026-02-21 California Legislative Information

    From printer. May be heard in committee March 23.

  9. 2026-02-20 California Legislative Information

    Read first time. To print.

Official Summary Text

AB 2431, as amended, Patel.
Downcoding medical claims.
Existing law, the Knox-Keene Health Care Service Plan Act of 1975, provides for the licensure and regulation of health care service plans by the Department of Managed Health Care, and makes a willful violation of the act a crime. Existing law provides for the regulation of health insurers by the Department of Insurance. Existing law sets forth requirements by which a health care service plan or health insurer reimburses a provider for health care services.
This bill would
prohibit a health care service plan or an insurer issuing group or individual policies of health insurance from using an automated process, system, or tool
require a determination
to
downcode a claim, which is the unilateral alteration by a payer of the service or procedure code submitted on a claim resulting in a lower
payment.
payment, to include a documented review of the clinical information supporting the billed service.
The bill would set forth requirements for and limitations of downcoding decisions, and, if a claim is downcoded, would require a plan or insurer to provide a billing provider with specified information and a clear and accessible process for disputing downcoded claims. The bill would prohibit a plan or insurer from using downcoding practices in a targeted or discriminatory manner against physicians or other health care providers who routinely treat patients with high acuity, complex, or chronic conditions, and would authorize the departments to take action against a plan or
insurer that engages in a pattern or practice of discriminatory downcoding or that otherwise violates these provisions. Because a willful violation of these provisions by a health care service plan would be a crime, the bill would impose a state-mandated local program.
The bill would require the departments to collect data on coding and claims adjustment practices, evaluate the information, and submit a report with specified information to the Legislature.
The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement.
This bill would provide that no reimbursement is required by this act for a specified reason.

Current Bill Text

Read the full stored bill text
Download Bill PDF