Section 440.40.

Cal. Health and Safety Code - HSC § 440.40.
in effect
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The primary attending health care practitioner shall obtain prior written consent from each patient for whom a billing is requested, authorizing the release of the patient’s billing. A copy of this signed patient consent form shall be forwarded to the health care facility as part of the written request for itemized billings.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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