5A1 Performance - Physiological Systems ICD-10-PCS
The 5A1 code range contains 24 ICD-10-PCS codes for Performance procedures on the physiological systems. 23 of the codes are billable and valid for inpatient claim submission in fiscal year 2027.
Root Operation Definition
Performance: Completely taking over a physiological function by extracorporeal means.
Codes in the 5A1 Range 24 codes · 23 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
- 5A1D701 Performance of Urinary Filtration, Intermittent, Less than 6 Hours Per Day, Selective Cytopheresis New
- 5A1D70Z Performance of Urinary Filtration, Intermittent, Less than 6 Hours Per Day
- 5A1D801 Performance of Urinary Filtration, Prolonged Intermittent, 6-18 hours Per Day, Selective Cytopheresis New
- 5A1D80Z Performance of Urinary Filtration, Prolonged Intermittent, 6-18 hours Per Day
- 5A1D901 Performance of Urinary Filtration, Continuous, Greater than 18 hours Per Day, Selective Cytopheresis New
- 5A1D90Z Performance of Urinary Filtration, Continuous, Greater than 18 hours Per Day
About the 5A1 Code Range
These procedures use means outside the body to take over a heart, circulation, breathing, bile-related, or urinary function completely. They include heart-lung bypass, membrane oxygenation, hemodialysis (blood filtration), mechanical ventilation, chest compression, and cardiac pacing.
The Body System character identifies the function being taken over. Duration distinguishes single, intermittent, continuous, multiple, and intraoperative performance, with options specifying consecutive hours or hours per day. Function identifies filtration, output, oxygenation, pacing, or ventilation. The Qualifier distinguishes selective cytopheresis (separation of certain cells), manual, nonmechanical, automated, and membrane options, or indicates No Qualifier. Membrane options distinguish central, peripheral veno-arterial, and peripheral veno-venous performance.
FY 2027 changes: The FY 2027 ICD-10-PCS update, effective October 1, 2026, added 5A1D701, 5A1D801 and 5A1D901.
Questions About This Page
How many billable codes are in the 5A1 range?
Of the 24 codes in this range, 23 are billable and valid for inpatient claim submission from October 1, 2026 through September 30, 2027. 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 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
