Don't let RACs bilk you out of this appropriate therapy billing. Recovery Audit Contractors are going after overbilling of untimed therapy codes. Three out of four RACs have published untimed codes as an approved issue for automated review, warns Nancy Beckley with Bloomingdale Consulting Group Inc. in Brandon, Fla. Automated RAC reviews are ones "where the computer rolls away in the middle of the night and determines if a particular code has been billed in units of more than one," she says. In a nutshell: "An untimed code, according to the CPT code definition, is one billed irrespective of the time spent on the service," Beckley says. In other words, if you don't see a time indicator, such as "15 minutes," "1 hour," etc., in the CPT code descriptor, you're looking at an untimed code. Potential problem: "The therapy documentation may include the number of minutes," says Victor Kintz, managing director of operations for The Polaris Group based in Tampa, Fla. "But a biller who isn't familiar with the codes may bill for four units or an hour for an [untimed code]. And if the MAC or FI system pays it by mistake, then there's an overpayment," Kintz cautions. So therapists and managers in settings that aren't therapy-only should alert their billers to this potentially confusing snag. Know These Untimed Code Hot Buttons Ouch: In the RAC demo alone, RACs recovered $3.2 million on the issue of speech therapy untimed codes, noted Betsy Anderson with FR&R Healthcare Consulting in Deerfield, Ill., in a presentation at the 2009 American Association of Homes & Services for the Aging annual meeting. Speech-language pathology has the most commonly used untimed codes, Kintz notes. "Speech/hearing therapy and swallowing therapy are examples of two," Kintz says. Examples of untimed codes for physical therapy include electrical stimulation for stage III and IV ulcers and paraffin bath therapy, Kintz adds.Also keep in mind that most rehab therapy evaluations are untimed codes -- "no matter how long the evaluation took," he says. The only exceptions are some timed evaluations for SLPs, such as 96105 for aphasia assessment and 96125 for cognitive testing, which are each a per hour code. OTs can report 96125 too. Careful: It's not just the codes themselves you need to watch; modifiers can spring a RAC trap too. For example, "Medicare allows you to use the 59 modifier to identify situations where you provided therapy to more than one body site," says physical therapist Pauline Franko of Encompass Consulting & Education in Tamarac, Fla. But you can't use a modifier 59 for an untimed code, she stresses. Even if you're following all the rules,beware mistakes on the RACs' end too. Some providers in Florida have had Part B therapy claims denied because claims had two untimed codes appearing on the same claim, Beckley points out.Yet "there is no prohibition against billing two untimed codes -- the approved [RAC] issue is for two units of an untimed code" (see Eli's HCW, Vol. XIX, No. 14, p. 109).