You'd better give your claims returned with reason code U538I a close look. "The Common Working File (CWF) has confirmed a claims processing issue that is causing claims to receive reason code U538I incorrectly," Cahaba GBA says on its website. "U538I indicates that the home health claim is overlapping a home health episode with a different provider number." Do this: "If you feel that U538I is an error, press F9 to move the claim out of the RTP file," Cahaba instructs. "Claims with reason code U538I will be held in status/location S M538I until the issue is resolved." You might be waiting a while, however. Cahaba expects a solution in April, it says.