ICD-10-PCS Body System: ICD-10-PCS Body System 4A - Physiological Systems
The ICD-10-PCS root operation Physiological Systems (Character 4A) encompasses procedures focused on assessing body functions rather than performing anatomical alterations. This operation includes two main activities: Measurement and Monitoring.
Within the Measurement and Monitoring classification, the Measurement component involves determining the level of a physiological or physical function at a specific point in time, such as recording a vital sign or lab value. In contrast, Monitoring refers to continuously or repeatedly assessing these functions over a period, allowing for ongoing evaluation of a patient’s condition. These distinctions are captured in ICD-10-PCS codes like 4A0 for measurement and 4A1 for monitoring. Accurate use of these codes is essential for documenting procedures that evaluate physiological systems without direct intervention, providing crucial information for clinical decision-making and patient care tracking.
List of ICD-10-PCS procedures under ICD-10-PCS Body System 4A - Physiological Systems
4A0 - Measurement - Determining the level of a physiological or physical function at a point in time
4A1 - Monitoring - Determining the level of a physiological or physical function repetitively over a period of time
