Cal. Ins. Code § 779.30

(a) An individual policy or group certificate may exclude from credit disability insurance coverage only those preexisting illnesses, diseases, or physical conditions for which the debtor actually received medical advice, consultation, or treatment both within six months before and six months after the effective date of the debtor’s coverage and which result in disability commencing within two years of the effective date. This provision shall not preclude the exclusion of other preexisting diseases or physical conditions by name or specific description.
(b) An individual policy or group certificate may exclude from credit life insurance coverage only those preexisting illnesses, diseases, or physical conditions for which the debtor actually received medical advice, consultation, or treatment both within six months before and six months after the effective date of the debtor’s coverage and that result in death within six months after the effective date.
(c) Preexisting condition provisions on revolving accounts for credit disability insurance shall be subject to the limitations of subdivision (a), and for credit life insurance shall be subject to the limitations of subdivision (b).
(d) In the case of revolving accounts, any preexisting condition provision may be applied separately to each charge or advance, in which case the time periods in the applicable subdivision shall be measured from the date of each separate charge or advance.
If any preexisting condition provision is applied to a subsequent charge or advance on a revolving account the consumer shall be given the following notice at least annually:
“NOTICE: THIS INSURANCE MAY NOT COVER AN ADVANCE OR CHARGE UNDER YOUR CREDIT LINE IF YOUR DISABILITY OR DEATH RESULTS FROM A CONDITION FOR WHICH YOU HAVE SEEN A DOCTOR OR CHIROPRACTOR IN THE SIX MONTHS BEFORE THE ADVANCE OR CHARGE.”
(e) The notice required by subdivision (d) may be printed on a periodic billing statement or given separately.
(f) Subdivision (d) does not apply to a credit card as defined in Section 1747.02 of the Civil Code.