Benchmark: Denials up for longer in-office prolonged service codes, down for others
Make sure you have complete documentation to support billing 99355 (Prolonged service in the office ... ; each additional 30 minutes) for at least 75 minutes of prolonged services because denial rates jumped to 35.5% in 2011 from 29.8% in 2010.
To read the full article, sign in and subscribe to the DecisionHealth Newsletters.