New OIG report should be a 'wake-up call' for HHAs, trade group warns. Out of $3.3 million in aide and nursing services the In counting at-risk payments for aides and nurses, the OIG counted any Medicaid-paid visits that occurred during a Medicare PPS episode and that were part time or intermittent. Without a detailed medical review, the OIG couldn't determine if the visits were actually incorrectly paid by Medicaid or not,the agency admitted. Pitfall: "CMS could ... provide greater clarity in the CMS 'Medicare Benefit Policy Manual' to explain that unskilled services provided during a skilled nursing visit paid under the PPS are included in the PPS payment," the OIG suggests. Pay attention: There were "significant deficiencies" in the OIG's research methodology in the five states surveyed for the report -- Florida, North Carolina, Ohio, Maryland, and Texas, NAHC says. But "the potential billing vulnerabilities identified by the OIG merit the attention of the home care industry," the trade group allows. Note: The report is at www.oig.hhs.gov/oei/reports/oei-07-06-00641.pdf.