OPINION OF THE COURT
The question raised by this appeal is whether respondents’ interpretation and application of Public Health Law § 2807-c (11) (a) was unlawful, arbitrary, capricious and an abuse of discretion. Supreme Court granted the CPLR article 78 petition, concluding that respondents had acted illegally in retroactively readjusting the Medicaid rate for alternate level care straddle patients and in recouping the alleged overpayments from petitioner. Respondents appeal.
Petitioner Buffalo Columbus Hospital provides medically necessary hospital services (acute care), as well as posthospital extended care to patients no longer in need of acute care (alternate level care or ALC). Petitioner provides these services to the indigent and is reimbursed in accordance with the provisions of the Public Health Law. The Department of Social Services administers the program and is the payor for Medicaid. Prior to legislation adopted in 1987, petitioner was reimbursed for the cost of providing both acute care and ALC services to patients covered by Medicaid on a per diem basis (see, Public Health Law § 2807-a). Effective January 1, 1988, Medicaid reimbursement rates were assessed on a per case basis for acute care services and on a per diem basis for ALC services (see, Public Health Law § 2807-c [1], [4] [h]; 10 NYCRR 86-1.50 et seq.). The effect of the 1987 legislation was to reduce reimbursement rates for services rendered to ALC patients who were admitted to the hospital after January 1, 1988. The statute includes an exception for patients admitted to the hospital prior to January 1, 1988, but receiving services thereafter. The reimbursement rate for these patients, com
In pertinent part, Public Health Law § 2807-c (11) (a) provides as follows: "Notwithstanding any inconsistent provision of this chapter or any other law to the contrary, payment for inpatient hospital services provided on or after January first, nineteen hundred eighty-eight to a patient admitted to a general hospital prior to January first, nineteen hundred eighty-eight otherwise eligible for payment on a case based payment per discharge basis for a diagnosis-related group shall be at the rate of payment for such general hospital for such patient in effect for December thirty-first, nineteen hundred eighty-seven”.
From January 1, 1988 to July 3, 1989, respondents reimbursed petitioner for both acute care and ALC straddle patients at a rate pursuant to Public Health Law § 2807-c (11) (a). On July 3, 1989, respondents advised petitioner they would be applying retroactively Public Health Law § 2807-c (4) (h) to ALC straddle patients and that they would adjust future payments to recoup the overpayments that they had previously made. Respondents contend that their action was prompted by a plain reading of Public Health Law § 2807-c (11) (a) because it applied only to patients otherwise eligible for payments on a case based payment method, which they claim necessarily includes only acute care patients.
The propriety of respondents’ actions turns on whether their interpretation of Public Health Law § 2807-c (11) (a) as excluding ALC straddle patients rationally and reasonably reflects the intent of the Legislature. It is well settled that an agency’s interpretation of the statutes it administers must be upheld absent demonstrated irrationality or unreasonableness (see, Matter of Lezette v Board of Educ.,
Public Health Law § 2807-c (11) (a) is not clear on its face. Hence, extrinsic evidence and the rules of construction must be used to determine the statute’s meaning (see, Civil Serv.
Initially, a phrase should be read as modifying its immediate antecedent; in this case the phrase "otherwise eligible for payment on a case based payment per discharge basis” found in Public Health Law § 2807-c (11) (a) modifies "hospital” (see, McKinney’s Cons Laws of NY, Book 1, Statutes § 254; see also, Matter of Mularadelis v Haldane Cent. School Bd.,
Taking the rules of construction into account, it is clear that Public Health Law § 2807-c (11) (a) applies to both acute care and ALC straddle patients (see, Matter of Hospital Assn. v Axelrod,
Judgment unanimously affirmed, without costs.
