For over two years, University of Florida Health Jacksonville did not comply with Medicare billing requirements, due to inadequate billing controls. The noncompliance resulted in overpayments of at least $273,000, according to an audit by the HHS Office of the Inspector General (OIG).
The 695-bed not-for-profit hospital submitted 11,134 inpatient claims during the audit period (January 2013 through September 2014). Medicare paid the hospital $167 million on those claims. The OIG audit evaluated 1,305 inpatient claims that were potentially at risk for billing errors. From those claims, the OIG selected a random sample of 154 paid claims, totaling $1,964,826. Although the OIG determined that the hospital complied with billing requirements for the majority of the claims (133), the audit revealed that the hospital failed to comply with Medicare billing requirements for 21 claims, resulting in a net overpayment of $63,881 for the audit period. Based upon the sample, the OIG extrapolated that the hospital improperly received overpayments of at least $273,346 between January 2013 and September 2014.
For 19 of the 154 claims, the hospital billed incorrect diagnosis-related group (DRG) codes. For example, in one case, the hospital submitted a claim with a secondary diagnosis code 599.0 (urinary tract infection), despite the fact that the patient’s medical record indicated the patient had no signs or symptoms of a urinary tract infection. In other words, the hospital had no basis to assign code 599.0. The hospital attributed the billing mistakes to human error. The noncompliance related to the DRG codes accounted for the vast majority of the errors and led to net overpayments of $47,165.
When a patient is discharged from an acute care hospital and readmitted to the same hospital on the same day for symptoms related to the prior stay, the hospital is required to combine the original and subsequent stay into a single claim. The OIG determined that for 2 of the 154 audited claims, the hospital incorrectly billed Medicare for related discharges and readmissions that occurred on the same day. The hospital attributed the improper billing to human error.
The OIG recommended that the hospital:
- refund the estimated $273,346 in overpayments to the Medicare program;
- identify and return similar overpayments; and
- strengthen billing and coding controls to ensure future compliance.
The hospital objected to the findings regarding 11 of 21 inpatient claims. Additionally, although the hospital acknowledged that human error contributed to the 10 other errors, there was “no evidence to support systemic coding or billing concerns.” The hospital also challenged the OIG’s authority to extrapolate a payment error rate.