Arizona Health Care Cost Containment System v. McClellan

IKUTA, Circuit Judge:

This appeal requires us to resolve conflicting statutory interpretations of § 402(e) of the Indian Health Care Improvement Act, 42 U.S.C. § 1396d(b), which requires the federal government to pay 100 percent of certain Medicaid costs for services “which are received through an Indian Health Service facility.” 1 The Arizona Health Care Cost Containment System (“Arizona”), the state entity that administers Arizona’s Medicaid program, interprets this language as requiring the federal government to reimburse states for all health care services provided to Medicaid-eligible…