Cal. Health & Safety Code § 1275.9
(a) A general acute care hospital shall inform a patient or the patient’s representative, at the time of admission or as soon as reasonably possible in cases of patient incapacity or an emergency treatment circumstance, that the patient may restrict or prohibit the use or disclosure of protected health information in the hospital’s patient directory, as provided in Section 164.510 of Title 45 of the Code of Federal Regulations, in both of the following manners: