340B Program Improvement and Integrity Act of 2009

[AI summary unavailable — showing source text] 340B Program Improvement and Integrity Act of 2009 - Amends the Public Health Service Act to expand the drug discount program to allow participation as a covered entity by certain: (1) children's hospitals; (2) critical access hospitals; (3) entities providing maternal and child health services, community mental health services, or treatment services for substance abuse; (4) Medicare-dependent, small rural hospitals; (5) sole community hospitals; and (6) rural referral centers. Prohibits enrolled hospitals from obtaining covered outpatient drugs through a group purchasing arrangement. Requires the Secretary of Health and Human Services to establish reasonable exceptions to such requirements, including for drugs unavailable through the program and to facilitate generic substitution when a generic covered drug is available at a lower price. Expands the program to include a drug used in connection with an inpatient or outpatient service by enrolled hospitals. (Currently, only outpatient drugs are covered under the program.) Requires hospitals enrolled in the 340B drug discount program to provide to each state a credit on the estimated annual costs to such hospital of single source and…