Legis
Healthcare
AB 1843, Chapter 552, Statutes of 2026 · Sunday 27 September 2026

Communicable diseases: hepatitis C

California bars prior authorization for medically necessary hepatitis C antiviral treatment in most commercial health coverage.

The law removes an insurer approval step that can delay access to direct-acting antiviral drugs used to treat hepatitis C.

What the law does ​

  • Prohibits health care service plans and health insurers from requiring prior authorization for medically necessary direct-acting antiviral drugs to treat hepatitis C.
  • Allows prior authorization for therapeutically equivalent versions of an FDA-approved pangenotypic hepatitis C treatment if at least one equivalent version is covered without prior authorization.
  • Exempts Medi-Cal managed care contracts with the State Department of Health Care Services.

Who it affects ​

  • People enrolled in covered health care service plans or health insurance who need medically necessary direct-acting antivirals for hepatitis C.
  • Health care service plans and health insurers.