N.Y. Ins. Law § 3224-c

§ 3224-c. Coordination of benefits. An insurer or organization or\ncorporation licensed or certified pursuant to article forty-three or\nforty-seven of this chapter or article forty-four of the public health\nlaw shall not deny a claim, either in whole or in part, on the basis\nthat it is coordinating benefits and another insurer or organization or\ncorporation or other entity is liable for the payment of the claim,\nunless it has a reasonable basis to believe that the insured has other\nhealth insurance coverage which is primary for that benefit. If an\ninsurer or organization or corporation does not have current information\nfrom the insured regarding other coverage, and requests such information\nin accordance with subsection (b) of section three thousand two hundred\ntwenty-four-a of this article, and no information is received within\nforty-five days, the claim shall be adjudicated provided, however, the\nclaim shall not be denied based on the insurer, or organization or\ncorporation not having received such information.\n