Summary & Overview
HCPCS G9362: Duration of MAC or Peripheral Nerve Block ≥60 Minutes
HCPCS Level II code G9362 denotes the documented duration of monitored anesthesia care (MAC) or a peripheral nerve block (PNB) when general anesthesia is not used for an applicable procedure lasting 60 minutes or longer. As a time-based anesthesia reporting code, G9362 provides standardized capture of anesthesia management without general endotracheal or mask anesthesia, supporting clinical documentation and claims processing for perioperative services. Nationally, consistent use of this code affects billing accuracy, payment appropriateness, and anesthesia service reporting for hospitals, ambulatory surgical centers, and anesthesia groups.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise account of what G9362 represents, where it is typically applied clinically, and which major payers are relevant for coverage and claims submission. The publication presents benchmarking context, policy and coding considerations, and clinical documentation implications for anesthesia providers and billing teams.
This summary equips clinical leaders, anesthesiologists, and revenue cycle professionals with a clear understanding of the code’s purpose, typical sites of service, and the scope of payer coverage examined, enabling more accurate coding and administrative coordination for MAC and PNB services lasting 60 minutes or longer.
Billing Code Overview
HCPCS Level II code G9362 describes the duration of monitored anesthesia care (MAC) or peripheral nerve block (PNB) without the use of general anesthesia for an applicable procedure lasting 60 minutes or longer, as documented in the anesthesia record. The code captures time-based documentation of anesthesia management when general endotracheal or mask anesthesia is not used.
Service type: Anesthesia service (monitored anesthesia care or peripheral nerve block) — time-based reporting for cases ≥60 minutes
Typical site of service: Hospital operating room, ambulatory surgical center, or other procedural setting where monitored anesthesia care or peripheral nerve block is provided without general anesthesia
Clinical & Coding Specifications
Clinical Context
A typical patient is a 58-year-old male scheduled for an ambulatory orthopedic procedure (e.g., open reduction and internal fixation of a distal radius fracture) performed under monitored anesthesia care (MAC) without general endotracheal or supraglottic airway. The anesthesiology team documents continuous monitoring and titration of intravenous sedatives and analgesics while the surgeon provides regional anesthesia with a peripheral nerve block (PNB) such as an axillary or supraclavicular brachial plexus block. The procedure and anesthetic plan are appropriate for MAC and/or PNB only, with airway reflexes largely preserved and spontaneous ventilation maintained.
The clinical workflow: the patient is triaged in preoperative area, informed consent for anesthesia and regional block obtained, time-out performed, and baseline vitals recorded. The anesthesiologist or CRNA places the peripheral nerve block under ultrasound guidance and administers sedation for MAC. The anesthesia record documents start and stop times for MAC/PNB and continuous monitoring (blood pressure, oxygen saturation, end-tidal CO2 if used, heart rate). If total documented monitored anesthesia care or peripheral nerve block time meets or exceeds 60 minutes, the service is reported with G9362 for each full 60-minute unit as supported by the anesthesia record.