A. Use of Critical Care Codes
Pay for services reported with CPT codes 99291 and 99292 when all the criteria for critical care and critical care services are met. Critical care is defined as the direct delivery by a physician(s) medical care for a critically ill or critically injured patient. A critical illness or injury acutely impairs one or more vital organ systems such that there is a high probability of imminent or life threatening deterioration in the patient’s condition.
Critical care involves high complexity decision making to assess, manipulate, and support vital system functions(s) to treat single or multiple vital organ system failure and/or to prevent further life threatening deterioration of the patient’s condition.
Examples of vital organ system failure include, but are not limited to: central nervous system failure, circulatory failure, shock, renal, hepatic, metabolic, and/or respiratory failure. Although critical care typically requires interpretation of multiple physiologic parameters and/or application of advanced technology(s), critical care may be provided in life threatening situations when these elements are not present.
Providing medical care to a critically ill, injured, or post-operative patient qualifies as a critical care service only if both the illness or injury and the treatment being provided meet the above requirements.
Critical care is usually, but not always, given in a critical care area such as a coronary care unit, intensive care unit, respiratory care unit, or the emergency department. However, payment may be made for critical care services provided in any location as long as the care provided meets the definition of critical care.
Consult the American Medical Association (AMA) CPT Manual for the applicable codes and guidance for critical care services provided to neonates, infants and children.
B. Critical Care Services and Medical Necessity
Critical care services must be medically necessary and reasonable. Services provided that do not meet critical care services or services provided for a patient who is not critically ill or injured in accordance with the above definitions and criteria but who happens to be in a critical care, intensive care, or other specialized care unit should be reported using another appropriate E/M code (e.g., subsequent hospital care, CPT codes 99231 - 99233).
As described in Section A, critical care services encompass both treatment of “vital organ failure” and “prevention of further life threatening deterioration of the patient’s condition.” Therefore, although critical care may be delivered in a moment of crisis or upon being called to the patient’s bedside emergently, this is not a requirement for providing critical care service. The treatment and management of the patient’s condition, while not necessarily emergent, shall be required, based on the threat of imminent deterioration (i.e., the patient shall be critically ill or injured at the time of the physician’s visit).