California Code, Health and Safety Code - HSC § 1599.67

(a) Every contract of admission shall state clearly what services and supplies are covered by the facility's basic daily rate. In addition, the agreement shall specify in detail which services are optional, and the charges for these services, and indicate that residents will receive monthly statements itemizing all charges incurred by them.

(b) The contract of a facility that is a provider pursuant to Medicare, or Medi-Cal, or both, shall state that optional and covered services may be different for residents in those programs than for private pay residents. When a resident converts from Medicare or private pay to Medi-Cal, the facility shall give the resident a form listing Medi-Cal optional and covered services.

(c) Every contract of admission shall clearly state that the facility is required by law to provide no less than 30 days written notice to the residents of any increase for optional services or in the daily room rate charged by the facility, except as provided in subdivision (b) of Section 1288.