Summary & Overview
CPT 99466: Accompaniment and Care During Interfacility Transport of Critically Ill Child
CPT code 99466 documents in-person clinical accompaniment and care of a critically ill or injured child aged two years or younger during transport between healthcare facilities. This code captures a high-acuity, time-sensitive service that supports safe interfacility transfers for pediatric patients requiring continuous clinical oversight. Nationally, recognition and correct use of this code matters because it distinguishes critical transport accompaniment from routine transport or facility-based critical care, affecting clinical documentation and claim adjudication.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for 99466, common billing considerations, and the types of benchmarks and policy topics typically reviewed for interfacility pediatric transport services. The publication also outlines typical sites of service and the service type associated with this code.
The content provides operational clarity for coding teams, revenue integrity staff, and clinicians involved in pediatric interfacility transfers. It highlights areas where documentation should reflect continuous in-person clinical care during transport, and it points to the kinds of payer policies and reimbursement scenarios that organizations commonly examine when evaluating use of 99466.
Billing Code Overview
CPT code 99466 describes a clinician who accompanies and cares for a critically ill or injured child, in person, who is two years of age or younger, during transportation between facilities. This service involves hands-on clinical management of the patient throughout the interfacility transport period.
-
Service type: Critical care transport nursing/physician accompaniment
-
Typical site of service: Interfacility transport between medical facilities (transport vehicle or ambulance during transfer)
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves a critically ill or injured infant (age two years or younger) requiring interfacility transfer for a higher level of pediatric critical care. Example: a 6-month-old with severe bronchiolitis and respiratory failure on high-flow nasal cannula and escalating oxygen needs at a community hospital; the receiving tertiary pediatric intensive care unit accepts the transfer and an attending pediatric intensive care physician or pediatric critical care transport team physician accompanies the child during ground or rotary-wing transport to manage ventilatory support, vasoactive infusions, and potential rapid deterioration. The clinical workflow begins with stabilization at the sending facility, communication between sending and receiving teams, arrangement of transport (ambulance or helicopter), acceptance by the receiving facility, documentation of the physician’s in-person accompaniment during transport, continuous monitoring and interventions en route, and handoff on arrival. Billing for 99466 is appropriate when the provider physically accompanies the child in the transporting vehicle and provides medical management throughout the interfacility transfer.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Office or other outpatient visit | Applied only if the service is billed in conjunction with an outpatient visit code when appropriate (rare for transport services). |