Find policies, billing codes, payers, states, and providers
CPT 99292: Critical Care, Add-On Each Additional 30 Minutes
CPT code 99292 denotes an add-on critical care service billed for each additional 30 minutes of direct critical care after the initial 30–74 minutes. Critical care services address life‑threatening conditions such as organ failure, sepsis, respiratory failure, or cardiac arrest and are defined by the patient’s severity of illness, the intensity of services required, and documented time spent. Accurate use of 99292 affects national reimbursement patterns and administrative compliance because it is time‑based, additive to the primary critical care code, and contingent on medical necessity documentation.
Key payers included in this coverage analysis are Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find an overview of how 99292 functions as an add‑on service, the clinical contexts where it is applicable, and the relationship to the primary critical care service code. The publication outlines common clinical diagnoses that typically justify critical care time, typical sites of service (ICU, CCU, respiratory care units, emergency department), and the operational implications of billing incremental critical care time nationally.
This summary prepares clinicians, coders, and policy stakeholders to understand the code’s purpose, the documentation expectations tied to medical necessity, and where 99292 fits within critical care billing workflows and national payment considerations.
Customize your policy alerts
Sign up for cpt 99292 policy alerts
Get alerted when payer policies referencing 99292 are released or updated.
Monitor payer policy activity
Billing Code Overview
CPT code 99292 is an add-on critical care service code used for each additional 30 minutes of direct critical care after the initial 30–74 minutes provided with the primary critical care code. Critical care services include treatment of vital organ failure or prevention of further life‑threatening conditions and require demonstration of the severity of illness, the intensity of services, and the time spent delivering care. Proper documentation of medical necessity is required to report this service.
Service type: Critical care, add‑on time-based service
Typical site of service: Critical care areas such as the coronary care unit (CCU), intensive care unit (ICU), respiratory care unit, or emergency room.
National Reimbursement Benchmarks
Nationally, Medicare’s mean allowed rate of $137.3 for CPT 99292 sits well below BUCA’s average commercial mean of $185.8, creating a gap of $48.5 between a common public payer benchmark and a representative commercial composite. This spread highlights that commercial payers on average reimburse notably higher than Medicare for this critical critical care add-on code, with BUCA aligning closer to other large commercial plans than to Medicare.
Rate dispersion measured by the interquartile range (P75 minus P25) varies across payers. Blue Cross Blue Shield shows a tight IQR of $71.0 ($182.5−$115.4), while Aetna and UnitedHealth Group present wider spreads of $223.4 ($312.6−$90.2) and $102.3 ($224.7−$120.4) respectively; Cigna’s IQR is $98.5 ($213.7−$115.2). BUCA’s IQR is $104.1 ($216.4−$112.3) and Medicare’s IQR is $11.0 ($142−$131), making Medicare the tightest and Aetna the widest in interquartile dispersion.