5A1 Performance - Physiological Systems ICD-10-PCS
The 5A1 code range contains 21 ICD-10-PCS codes for Performance procedures on the physiological systems. 20 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Performance: Completely taking over a physiological function by extracorporeal means.
Codes in the 5A1 Range 21 codes · 20 billable
- 5A1 Extracorporeal or Systemic Assistance and Performance, Physiological Systems, PerformanceNon-billable header
- 5A12012 Performance of Cardiac Output, Single, Manual
- 5A1213Z Performance of Cardiac Pacing, Intermittent
- 5A1221J Performance of Cardiac Output, Continuous, Automated
- 5A1221Z Performance of Cardiac Output, Continuous
- 5A1223Z Performance of Cardiac Pacing, Continuous
- 5A1522F Extracorporeal Oxygenation, Membrane, Central
- 5A1522G Extracorporeal Oxygenation, Membrane, Peripheral Veno-arterial
- 5A1522H Extracorporeal Oxygenation, Membrane, Peripheral Veno-venous
- 5A15A2F Extracorporeal Oxygenation, Membrane, Central, Intraoperative
- 5A15A2G Extracorporeal Oxygenation, Membrane, Peripheral Veno-arterial, Intraoperative
- 5A15A2H Extracorporeal Oxygenation, Membrane, Peripheral Veno-venous, Intraoperative
- 5A19054 Respiratory Ventilation, Single, Nonmechanical
- 5A1935Z Respiratory Ventilation, Less than 24 Consecutive Hours
- 5A1945Z Respiratory Ventilation, 24-96 Consecutive Hours
- 5A1955Z Respiratory Ventilation, Greater than 96 Consecutive Hours
- 5A1C00Z Performance of Biliary Filtration, Single
- 5A1C60Z Performance of Biliary Filtration, Multiple
- 5A1D70Z Performance of Urinary Filtration, Intermittent, Less than 6 Hours Per Day
- 5A1D80Z Performance of Urinary Filtration, Prolonged Intermittent, 6-18 hours Per Day
- 5A1D90Z Performance of Urinary Filtration, Continuous, Greater than 18 hours Per Day
About the 5A1 Code Range
The ICD-10-PCS root operation Performance (code prefix 5A1) refers to providing extracorporeal or systemic assistance to physiological systems without directly altering the body parts themselves. This procedure supports or maintains vital bodily functions using mechanical or manual means.
Within the classification of Extracorporeal or Systemic Assistance and Performance, these codes capture interventions such as the Performance of Cardiac Output—whether Single, Manual (code 5A12012) or Continuous, Automated (code 5A1221J)—and account for cardiac pacing delivered intermittently or continuously. The root operation also includes various forms of Extracorporeal Oxygenation, distinguishing between Central and Peripheral Veno-arterial or Veno-venous approaches, with intraoperative options. Additionally, different durations of Respiratory Ventilation are coded, ranging from nonmechanical single episodes to extended ventilation beyond 96 hours. Filtration procedures for biliary and urinary systems, delivered intermittently or continuously, also fall under this operation, highlighting its broad role in sustaining life functions without bodily alteration.
Questions About This Page
How many billable codes are in the 5A1 range?
Of the 21 codes in this range, 20 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.
What does the 5A1 range classify?
The range classifies Performance procedures, completely taking over a physiological function by extracorporeal means, performed on the physiological systems. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
