The Medicare home health benefit covers intermittent skilled nursing care, physical therapy, speech-language pathology services, continued occupational services, medical social worker services, and home health aide services. For CY 2014, Medicare paid home health agencies (HHAs) about $18 billion for home health services. CMS's Comprehensive Error Rate Testing (CERT) program determined that the 2014 improper payment error rate for home health claims was 51.4 percent, or about $9.4 billion. Recent OIG reports have similarly disclosed high error rates at individual HHAs. Improper payments identified in these OIG reports consisted primarily of beneficiaries who were not homebound or who did not require skilled services.