Our “Back to Basics” Series continues this week with a new installment. Moderate (conscious) sedation is a critical component of many medical procedures, ensuring patient comfort and safety through a drug-induced depression of consciousness. This week we will review some of the fundamental knowledge critical to creating a core of success.
What is Moderate Sedation?
Moderate sedation, also known as conscious sedation, is defined by the American Society of Anesthesiologists (ASA) as a drug-induced depression of consciousness. During moderate sedation, patients remain responsive to verbal commands, either alone or with light tactile stimulation, and do not require interventions to maintain an open airway. Spontaneous ventilation and cardiovascular function are typically well-maintained, making this a safe and effective approach for many medical procedures.
How to Report Moderate Sedation Using CPT® Codes
Accurate documentation and coding of moderate sedation are essential for proper billing and compliance. According to CPT® guidelines, moderate sedation can be reported separately when performed by qualified healthcare providers. Codes 99151, 99152, and 99153 are used when the same provider performs both the procedure and the sedation. Additionally, these providers must oversee a trained, independent observer responsible for monitoring the patient throughout the procedure. For cases where moderate sedation is provided by a different provider than the one performing the procedure, codes 99155, 99156, and 99157 are reported. Importantly, the observer must be solely dedicated to patient monitoring and not have other responsibilities during the procedure.
These distinctions ensure clarity in documentation and support accurate reimbursement, emphasizing the importance of following established coding guidelines.
The codes are reported based on intraservice work time only. How is intraservice time measured? Intraservice time begins with the administration of the sedation and ends when the procedure has ended, the patient is stable for recovery, and the provider of sedation ends continuous face-to-face time with the patient.
Questions may arise as to whether pre- and post-service work should be coded separately using E&M codes. Pre- and post-service work are included in the work of the moderate sedation codes and should not be reported as a separate E & M service. However, the time involved in the pre-and post-service work is not included in the intraservice time used to determine the appropriate code(s).
Understand that codes 99151 (under 5 years) and 99152 (5 years or older) are reported for the first 15 minutes of sedation provided by the same provider who is performing the procedure. Codes 99155 (under 5 years) and 99156 (5 years or older) are reported for the first 15 minutes of sedation provided by a provider other than the one performing the procedure. These codes may be billed when at least 10 minutes of sedation has been provided.
Codes 99153 (same provider) and 99157 (other provider) are billed for each additional 15 minutes of sedation. At least eight additional minutes of sedation beyond the first 15 must be performed before code 99153 or 99157 is billed. Here is a concrete example of the codes in action:
For example, if 10 to 15 minutes of moderate sedation is provided by the same physician performing the procedure on a 3-year-old child, code 99151 would be reported. Before 99153 is also reported, the physician must provide at least 23 minutes of moderate sedation, the initial 15 minutes for 99151 and at least 8 minutes for 99153. To report 99151 and 99153 x 2, at least 38 minutes of sedation must be provided: 15 minutes for 99151, 15 minutes for the first 99153 and at least 8 minutes for the second 99153.
Physician practices should be aware that Medicare considers code 99153 a technical-only code and will only reimburse for 99151 or 99152 for moderate-sedation services performed in the hospital by the same physician performing the procedure that the sedation supports.
Coders should consult the CPT® manual for advanced guidance. The CPT manual offers extensive guidelines and a time chart to assist with appropriate moderate sedation reporting. When in doubt, always check with your payer for their guidelines regarding payment for moderate sedation.
These are not all the tips and knowledge necessary for understanding the basics of IR coding.
Equipping coders with the educational tools they need is essential for success for several key reasons that impact both your bottom line and compliance:
Accurate IR coding bridges communication between healthcare providers, payers, and patients. It ensures that the clinical services provided are clearly and correctly conveyed to insurers, promoting transparency.
Proper coding supports detailed documentation, which is vital for continuity of care. It ensures that other healthcare providers can easily understand the procedures performed and plan appropriate follow-ups.
Coding errors can be costly and time-consuming to correct. They may divert valuable resources to fix problems at the expense of other operations. A solid understanding of the basics helps reduce mistakes and streamlines the coding process.
Fortunately, we have a complete solution tailored to everyone’s specific learning needs. Our Interventional Radiology Coding: A Starter Kit. Three key resources deliver unprecedented expert guidance to master coding conundrums. Explore today.
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