Cal. Welfare and Institutions Code § 14132.11

(a) Commencing on July 1, 2024, pharmacogenomic testing shall be a covered benefit under the Medi-Cal program, subject to utilization controls and evidence-based clinical practice guidelines. (b) “Pharmacogenomic testing” means laboratory genetic testing that includes, but is not limited to, a panel test, to identify how a person’s genetics may impact the efficacy, toxicity, and safety of medications. (c) This section shall be implemented only to the extent that any necessary federal approvals have been obtained and federal financial participation is available and not otherwise jeopardized. (d) Notwithstanding Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code, the department may implement, interpret, or make specific this section by means of all-county letters, plan letters, plan or provider bulletins, or similar instructions, without taking any further regulatory action.