A 4-year-old, critically ill child is admitted to the PICU from the ED with respiratory failure due to an exacerbation of asthma not manageable in the ER. The PICU provider takes over the care of the patient and starts continuous bronchodilator therapy and pharmacologic support with cardiovascular monitoring and possible mechanical ventilation support. What is the E/M code for this encounter?

The patient is 4 years old and meets critical-care criteria (acute respiratory failure requiring continuous bronchodilator therapy, cardiovascular monitoring, and possible mechanical ventilation). CPT instructs that initial inpatient pediatric critical-care services for children aged 2 through 5 years are reported with 99471. Codes 99291-99292 are used for critical care of patients older than the pediatric range defined in CPT, while 99285 is an emergency-department service and not reportable once the child is admitted to the PICU. Code 99475 applies to children 6-11 years. Therefore, 99471 is the single, most specific E/M code for this encounter.

A. 99285 – High-level ED visit; not billable after transfer of care to PICU and inpatient status.
B. 99475 – Pediatric critical care initial, ages 6-11; patient is only 4.
C. 99291 – General critical care, but CPT directs use of pediatric codes (99468-99476) for patients ≤5 years.

1. AMA. CPT® Professional 2023, code descriptor 99471 and parenthetical notes, pp. 36-37.

2. AMA. CPT® 2023 “Critical Care Services and Pediatric Critical Care” guidelines, para. 3 under “Inpatient Neonatal and Pediatric Critical Care,” p. 35 (defines age ranges and code use).

3. American Academy of Pediatrics. “Management of Respiratory Failure in the PICU,” Pediatrics 144(2):e20192712, 2019, Introduction (affirms respiratory failure constitutes critical illness). DOI:10.1542/peds.2019-2712.

4. Stanford University School of Medicine, Pediatrics ICU Course Notes, Section “Age-specific CPT Coding,” 2022, p. 4 (reinforces use of 99471 for 2-5 yr critical care).