Prone to using consult codes? Big mistake, says experts. Don't think prolonged services have no great use to the podiatry practice. You can turn to this category of codes for patients who remain in the office for a prolonged period, and need intensive care -- such as a patient needing diabetic foot care. But first, what are the prolonged services codes? Important: 1. Does the Service Follow Time Requirements? You should use prolonged services codes when a physician spends an inordinate amount of time (at least 30 minutes) greater than the AMA's time-limit guidelines for a given level of E/M service, says Mary Falbo, MBA, CPC, president of Millennium Healthcare Consulting Inc. in Lansdale, Pa. Here's the table to make the calculations: Total Duration of Prolonged Services Code(s) (First 30 minutes not reported) 30-74 minutes 99354 x 1 75-104 minutes 99354 x 1 + 99355 x 1 105-134 minutes 99354 x 1 + 99355 x 2 135-164 minutes 99354 x 1 + 99355 x 3 165-194 minutes 99354 x 1 + 99355 x 4 Example: Heads-up: 2. Can You Fit a Time-Cumulative Scenario? All prolonged services codes require "face-to-face" patient care, but that doesn't mean the time must be continuous. Example: A podiatrist sees an established patient in a morning office visit for a level-three E/M to determine the cause of chronic heel and ankle pain. This visit lasts 20 minutes. At the end of the exam, the podiatrist orders an x-ray. The patient leaves to get the x-ray and returns that afternoon, and the podiatrist reviews the x-ray with the patient and discusses his diagnosis and treatment options. This visit lasts 30 minutes. Code it: Hint: 3. Should You Petition an Appeal For Denied Claims? Medicare carriers pay for prolonged services in most areas, but not all carriers will be so quick to reimburse for prolonged services. Some areas would consider prolonged services a noncovered Medicare charge. However, you always have the option to file for an appeal and you should when a case calls for it. You can take your case to the Qualified Independent Contractor (QIC) or administrative law judge level.