Conn. Gen. Stat. § 42a-9-405
Modification of assigned contract.
(b) Subsection (a) applies to the extent that:
(1) The right to payment or a part thereof under an assigned contract has not been fully earned by performance; or
(2) The right to payment or a part thereof has been fully earned by performance and the account debtor has not received notification of the assignment under subsection (a) of section 42a-9-406 .
(c) This section is subject to law other than this article which establishes a different rule for an account debtor who is an individual and who incurred the obligation primarily for personal, family or household purposes.
(d) This section does not apply to an assignment of a health-care-insurance receivable.