N.Y. Mental Hyg. Law § 9.64

§ 9.64 Notice of admission determination to community provider.\n Upon an admission to a hospital or received as a patient in a\ncomprehensive psychiatric emergency program, the director of such\nhospital or program shall, in accordance with section 33.13 of this\nchapter, ensure that reasonable efforts are made to identify and\npromptly notify of such determination any community provider of mental\nhealth services that maintains such person on its caseload.\n