Washington § 48.43.600 - Overpayment recovery — Carrier. (Effective until January 1, 2027.)

Full text of Washington Revised Code of Washington § 48.43.600 — Overpayment recovery — Carrier. (Effective until January 1, 2027.), with citation guidance and answers to common questions.

§ 48.43.600. Overpayment recovery — Carrier. (Effective until January 1, 2027.)

(1) Except in the case of fraud, or as provided in subsections (2) and (3) of this section, a carrier may not: (a) Request a refund from a health care provider of a payment previously made to satisfy a claim unless it does so in writing to the provider within twenty-four months after the date that the payment was made; or (b) request that a contested refund be paid any sooner than six months after receipt of the request. Any such request must specify why the carrier believes the provider owes the refund. If a provider fails to contest the request in writing to the carrier within thirty days of its receipt, the request is deemed accepted and the refund must be paid.
(2) A carrier may not, if doing so for reasons related to coordination of benefits with another carrier or entity responsible for payment of a claim: (a) Request a refund from a health care provider of a payment previously made to satisfy a claim unless it does so in writing to the provider within thirty months after the date that the payment was made; or (b) request that a contested refund be paid any sooner than six months after receipt of the request. Any such request must specify why the carrier believes the provider owes the refund, and include the name and mailing address of the entity that has primary responsibility for payment of the claim. If a provider fails to contest the request in writing to the carrier within thirty days of its receipt, the request is deemed accepted and the refund must be paid.
(3) A carrier may at any time request a refund from a health care provider of a payment previously made to satisfy a claim if: (a) A third party, including a government entity, is found responsible for satisfaction of the claim as a consequence of liability imposed by law, such as tort liability; and (b) the carrier is unable to recover directly from the third party because the third party has either already paid or will pay the provider for the health services covered by the claim.
(4) If a contract between a carrier and a health care provider conflicts with this section, this section shall prevail. However, nothing in this section prohibits a health care provider from choosing at any time to refund to a carrier any payment previously made to satisfy a claim.
(5) For purposes of this section, "refund" means the return, either directly or through an offset to a future claim, of some or all of a payment already received by a health care provider.
(6) This section neither permits nor precludes a carrier from recovering from a subscriber, enrollee, or beneficiary any amounts paid to a health care provider for benefits to which the subscriber, enrollee, or beneficiary was not entitled under the terms and conditions of the health plan, insurance policy, or other benefit agreement.
(7) This section does not apply to claims for health care services provided through dental only health carriers, health care services provided under Title XVIII (medicare) of the social security act, or medicare supplemental plans regulated under chapter 48.66 RCW.
[ 2005 c 278 s 1.]

Notes

Application—2005 c 278: "This act applies to contracts issued or renewed on or after January 1, 2006." [ 2005 c 278 s 3.]
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RCW 48.43.600

Source: official Washington text · Last verified 2026-08-27

Frequently Asked Questions About Washington § 48.43.600

What does Revised Code of Washington § 48.43.600 cover?

Section 48.43.600 ("Overpayment recovery — Carrier. (Effective until January 1, 2027.)") is part of the Revised Code of Washington, the codified statutory law of Washington. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Washington § 48.43.600?

A common citation format is "Revised Code of Washington § 48.43.600" (Washington). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Washington law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Washington official source linked on this page or consult a licensed Washington attorney.

How does Washington § 48.43.600 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Washington can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Washington.