ICD-10-PCS 4A0 Measurement and Monitoring: Physiological Systems Measurement
List of ICD-10-PCS codes used to specify 4A0 - Measurement (determining the level of a physiological or physical function at a point in time). There are a total of 222 procedure codes in this section.
4A0 - Measurement and Monitoring, Physiological Systems, Measurement
4A0002Z - Measurement of Central Nervous Conductivity, Open Approach
4A0004Z - Measurement of Central Nervous Electrical Activity, Open Approach
4A000BZ - Measurement of Central Nervous Pressure, Open Approach
4A0034Z - Measurement of Central Nervous Electrical Activity, Percutaneous Approach
4A003BD - Measurement of Intracranial Pressure, Percutaneous Approach
4A003KD - Measurement of Intracranial Temperature, Percutaneous Approach
4A003RD - Measurement of Intracranial Saturation, Percutaneous Approach
4A0074Z - Measurement of Central Nervous Electrical Activity, Via Natural or Artificial Opening
4A007BD - Measurement of Intracranial Pressure, Via Natural or Artificial Opening
4A007KD - Measurement of Intracranial Temperature, Via Natural or Artificial Opening
4A007RD - Measurement of Intracranial Saturation, Via Natural or Artificial Opening
4A0084Z - Measurement of Central Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopic
4A008BD - Measurement of Intracranial Pressure, Via Natural or Artificial Opening Endoscopic
4A008KD - Measurement of Intracranial Temperature, Via Natural or Artificial Opening Endoscopic
4A008RD - Measurement of Intracranial Saturation, Via Natural or Artificial Opening Endoscopic
4A00X2Z - Measurement of Central Nervous Conductivity, External Approach
4A00X4Z - Measurement of Central Nervous Electrical Activity, External Approach
4A01029 - Measurement of Peripheral Nervous Conductivity, Sensory, Open Approach
4A0102B - Measurement of Peripheral Nervous Conductivity, Motor, Open Approach
4A0104Z - Measurement of Peripheral Nervous Electrical Activity, Open Approach
4A01329 - Measurement of Peripheral Nervous Conductivity, Sensory, Percutaneous Approach
4A0132B - Measurement of Peripheral Nervous Conductivity, Motor, Percutaneous Approach
4A0134Z - Measurement of Peripheral Nervous Electrical Activity, Percutaneous Approach
4A01729 - Measurement of Peripheral Nervous Conductivity, Sensory, Via Natural or Artificial Opening
4A0172B - Measurement of Peripheral Nervous Conductivity, Motor, Via Natural or Artificial Opening
4A0174Z - Measurement of Peripheral Nervous Electrical Activity, Via Natural or Artificial Opening
4A01829 - Measurement of Peripheral Nervous Conductivity, Sensory, Via Natural or Artificial Opening Endoscopic
4A0182B - Measurement of Peripheral Nervous Conductivity, Motor, Via Natural or Artificial Opening Endoscopic
4A0184Z - Measurement of Peripheral Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopic
4A01X29 - Measurement of Peripheral Nervous Conductivity, Sensory, External Approach
4A01X2B - Measurement of Peripheral Nervous Conductivity, Motor, External Approach
4A01X4Z - Measurement of Peripheral Nervous Electrical Activity, External Approach
4A0204Z - Measurement of Cardiac Electrical Activity, Open Approach
4A0209Z - Measurement of Cardiac Output, Open Approach
4A020CZ - Measurement of Cardiac Rate, Open Approach
4A020FZ - Measurement of Cardiac Rhythm, Open Approach
4A020HZ - Measurement of Cardiac Sound, Open Approach
4A020N6 - Measurement of Cardiac Sampling and Pressure, Right Heart, Open Approach
4A020N7 - Measurement of Cardiac Sampling and Pressure, Left Heart, Open Approach
4A020N8 - Measurement of Cardiac Sampling and Pressure, Bilateral, Open Approach
4A020PZ - Measurement of Cardiac Action Currents, Open Approach
4A0234Z - Measurement of Cardiac Electrical Activity, Percutaneous Approach
4A0239Z - Measurement of Cardiac Output, Percutaneous Approach
4A023CZ - Measurement of Cardiac Rate, Percutaneous Approach
4A023FZ - Measurement of Cardiac Rhythm, Percutaneous Approach
4A023HZ - Measurement of Cardiac Sound, Percutaneous Approach
4A023N6 - Measurement of Cardiac Sampling and Pressure, Right Heart, Percutaneous Approach
4A023N7 - Measurement of Cardiac Sampling and Pressure, Left Heart, Percutaneous Approach
4A023N8 - Measurement of Cardiac Sampling and Pressure, Bilateral, Percutaneous Approach
4A023PZ - Measurement of Cardiac Action Currents, Percutaneous Approach
4A0274Z - Measurement of Cardiac Electrical Activity, Via Natural or Artificial Opening
4A0279Z - Measurement of Cardiac Output, Via Natural or Artificial Opening
4A027CZ - Measurement of Cardiac Rate, Via Natural or Artificial Opening
4A027FZ - Measurement of Cardiac Rhythm, Via Natural or Artificial Opening
4A027HZ - Measurement of Cardiac Sound, Via Natural or Artificial Opening
4A027N6 - Measurement of Cardiac Sampling and Pressure, Right Heart, Via Natural or Artificial Opening
4A027N7 - Measurement of Cardiac Sampling and Pressure, Left Heart, Via Natural or Artificial Opening
4A027N8 - Measurement of Cardiac Sampling and Pressure, Bilateral, Via Natural or Artificial Opening
4A027PZ - Measurement of Cardiac Action Currents, Via Natural or Artificial Opening
4A0284Z - Measurement of Cardiac Electrical Activity, Via Natural or Artificial Opening Endoscopic
4A0289Z - Measurement of Cardiac Output, Via Natural or Artificial Opening Endoscopic
4A028CZ - Measurement of Cardiac Rate, Via Natural or Artificial Opening Endoscopic
4A028FZ - Measurement of Cardiac Rhythm, Via Natural or Artificial Opening Endoscopic
4A028HZ - Measurement of Cardiac Sound, Via Natural or Artificial Opening Endoscopic
4A028N6 - Measurement of Cardiac Sampling and Pressure, Right Heart, Via Natural or Artificial Opening Endoscopic
4A028N7 - Measurement of Cardiac Sampling and Pressure, Left Heart, Via Natural or Artificial Opening Endoscopic
4A028N8 - Measurement of Cardiac Sampling and Pressure, Bilateral, Via Natural or Artificial Opening Endoscopic
4A028PZ - Measurement of Cardiac Action Currents, Via Natural or Artificial Opening Endoscopic
4A02X4A - Measurement of Cardiac Electrical Activity, Guidance, External Approach
4A02X4Z - Measurement of Cardiac Electrical Activity, External Approach
4A02X9Z - Measurement of Cardiac Output, External Approach
4A02XCZ - Measurement of Cardiac Rate, External Approach
4A02XFZ - Measurement of Cardiac Rhythm, External Approach
4A02XHZ - Measurement of Cardiac Sound, External Approach
4A02XM4 - Measurement of Cardiac Total Activity, External Approach
4A02XPZ - Measurement of Cardiac Action Currents, External Approach
4A03051 - Measurement of Arterial Flow, Peripheral, Open Approach
4A03053 - Measurement of Arterial Flow, Pulmonary, Open Approach
4A0305C - Measurement of Arterial Flow, Coronary, Open Approach
4A030B1 - Measurement of Arterial Pressure, Peripheral, Open Approach
4A030B3 - Measurement of Arterial Pressure, Pulmonary, Open Approach
4A030BC - Measurement of Arterial Pressure, Coronary, Open Approach
4A030BF - Measurement of Arterial Pressure, Other Thoracic, Open Approach
4A030H1 - Measurement of Arterial Sound, Peripheral, Open Approach
4A030J1 - Measurement of Arterial Pulse, Peripheral, Open Approach
4A030J3 - Measurement of Arterial Pulse, Pulmonary, Open Approach
4A030JC - Measurement of Arterial Pulse, Coronary, Open Approach
4A030R1 - Measurement of Arterial Saturation, Peripheral, Open Approach
4A03351 - Measurement of Arterial Flow, Peripheral, Percutaneous Approach
4A03353 - Measurement of Arterial Flow, Pulmonary, Percutaneous Approach
4A0335C - Measurement of Arterial Flow, Coronary, Percutaneous Approach
4A033B1 - Measurement of Arterial Pressure, Peripheral, Percutaneous Approach
4A033B3 - Measurement of Arterial Pressure, Pulmonary, Percutaneous Approach
4A033BC - Measurement of Arterial Pressure, Coronary, Percutaneous Approach
4A033BF - Measurement of Arterial Pressure, Other Thoracic, Percutaneous Approach
4A033H1 - Measurement of Arterial Sound, Peripheral, Percutaneous Approach
4A033J1 - Measurement of Arterial Pulse, Peripheral, Percutaneous Approach
4A033J3 - Measurement of Arterial Pulse, Pulmonary, Percutaneous Approach
4A033JC - Measurement of Arterial Pulse, Coronary, Percutaneous Approach
4A033R1 - Measurement of Arterial Saturation, Peripheral, Percutaneous Approach
4A03X51 - Measurement of Arterial Flow, Peripheral, External Approach
4A03X5D - Measurement of Arterial Flow, Intracranial, External Approach
4A03XB1 - Measurement of Arterial Pressure, Peripheral, External Approach
4A03XH1 - Measurement of Arterial Sound, Peripheral, External Approach
4A03XJ1 - Measurement of Arterial Pulse, Peripheral, External Approach
4A03XR1 - Measurement of Arterial Saturation, Peripheral, External Approach
4A04050 - Measurement of Venous Flow, Central, Open Approach
4A04051 - Measurement of Venous Flow, Peripheral, Open Approach
4A04052 - Measurement of Venous Flow, Portal, Open Approach
4A04053 - Measurement of Venous Flow, Pulmonary, Open Approach
4A040B0 - Measurement of Venous Pressure, Central, Open Approach
4A040B1 - Measurement of Venous Pressure, Peripheral, Open Approach
4A040B2 - Measurement of Venous Pressure, Portal, Open Approach
4A040B3 - Measurement of Venous Pressure, Pulmonary, Open Approach
4A040J0 - Measurement of Venous Pulse, Central, Open Approach
4A040J1 - Measurement of Venous Pulse, Peripheral, Open Approach
4A040J2 - Measurement of Venous Pulse, Portal, Open Approach
4A040J3 - Measurement of Venous Pulse, Pulmonary, Open Approach
4A040R1 - Measurement of Venous Saturation, Peripheral, Open Approach
4A04350 - Measurement of Venous Flow, Central, Percutaneous Approach
4A04351 - Measurement of Venous Flow, Peripheral, Percutaneous Approach
4A04352 - Measurement of Venous Flow, Portal, Percutaneous Approach
4A04353 - Measurement of Venous Flow, Pulmonary, Percutaneous Approach
4A043B0 - Measurement of Venous Pressure, Central, Percutaneous Approach
4A043B1 - Measurement of Venous Pressure, Peripheral, Percutaneous Approach
4A043B2 - Measurement of Venous Pressure, Portal, Percutaneous Approach
4A043B3 - Measurement of Venous Pressure, Pulmonary, Percutaneous Approach
4A043J0 - Measurement of Venous Pulse, Central, Percutaneous Approach
4A043J1 - Measurement of Venous Pulse, Peripheral, Percutaneous Approach
4A043J2 - Measurement of Venous Pulse, Portal, Percutaneous Approach
4A043J3 - Measurement of Venous Pulse, Pulmonary, Percutaneous Approach
4A043R1 - Measurement of Venous Saturation, Peripheral, Percutaneous Approach
4A044B2 - Measurement of Venous Pressure, Portal, Percutaneous Endoscopic Approach
4A04X51 - Measurement of Venous Flow, Peripheral, External Approach
4A04XB1 - Measurement of Venous Pressure, Peripheral, External Approach
4A04XJ1 - Measurement of Venous Pulse, Peripheral, External Approach
4A04XR1 - Measurement of Venous Saturation, Peripheral, External Approach
4A05XLZ - Measurement of Circulatory Volume, External Approach
4A0605Z - Measurement of Lymphatic Flow, Open Approach
4A060BZ - Measurement of Lymphatic Pressure, Open Approach
4A0635Z - Measurement of Lymphatic Flow, Percutaneous Approach
4A063BZ - Measurement of Lymphatic Pressure, Percutaneous Approach
4A0675Z - Measurement of Lymphatic Flow, Via Natural or Artificial Opening
4A067BZ - Measurement of Lymphatic Pressure, Via Natural or Artificial Opening
4A0685Z - Measurement of Lymphatic Flow, Via Natural or Artificial Opening Endoscopic
4A068BZ - Measurement of Lymphatic Pressure, Via Natural or Artificial Opening Endoscopic
4A07X0Z - Measurement of Visual Acuity, External Approach
4A07X7Z - Measurement of Visual Mobility, External Approach
4A07XBZ - Measurement of Visual Pressure, External Approach
4A08X0Z - Measurement of Olfactory Acuity, External Approach
4A0971Z - Measurement of Respiratory Capacity, Via Natural or Artificial Opening
4A0975Z - Measurement of Respiratory Flow, Via Natural or Artificial Opening
4A097CZ - Measurement of Respiratory Rate, Via Natural or Artificial Opening
4A097DZ - Measurement of Respiratory Resistance, Via Natural or Artificial Opening
4A097LZ - Measurement of Respiratory Volume, Via Natural or Artificial Opening
4A097MZ - Measurement of Respiratory Total Activity, Via Natural or Artificial Opening
4A0981Z - Measurement of Respiratory Capacity, Via Natural or Artificial Opening Endoscopic
4A0985Z - Measurement of Respiratory Flow, Via Natural or Artificial Opening Endoscopic
4A098CZ - Measurement of Respiratory Rate, Via Natural or Artificial Opening Endoscopic
4A098DZ - Measurement of Respiratory Resistance, Via Natural or Artificial Opening Endoscopic
4A098LZ - Measurement of Respiratory Volume, Via Natural or Artificial Opening Endoscopic
4A098MZ - Measurement of Respiratory Total Activity, Via Natural or Artificial Opening Endoscopic
4A09X1Z - Measurement of Respiratory Capacity, External Approach
4A09X5Z - Measurement of Respiratory Flow, External Approach
4A09XCZ - Measurement of Respiratory Rate, External Approach
4A09XDZ - Measurement of Respiratory Resistance, External Approach
4A09XLZ - Measurement of Respiratory Volume, External Approach
4A09XMZ - Measurement of Respiratory Total Activity, External Approach
4A0B78Z - Measurement of Gastrointestinal Motility, Via Natural or Artificial Opening
4A0B7BZ - Measurement of Gastrointestinal Pressure, Via Natural or Artificial Opening
4A0B7GZ - Measurement of Gastrointestinal Secretion, Via Natural or Artificial Opening
4A0B88Z - Measurement of Gastrointestinal Motility, Via Natural or Artificial Opening Endoscopic
4A0B8BZ - Measurement of Gastrointestinal Pressure, Via Natural or Artificial Opening Endoscopic
4A0B8GZ - Measurement of Gastrointestinal Secretion, Via Natural or Artificial Opening Endoscopic
4A0C35Z - Measurement of Biliary Flow, Percutaneous Approach
4A0C3BZ - Measurement of Biliary Pressure, Percutaneous Approach
4A0C45Z - Measurement of Biliary Flow, Percutaneous Endoscopic Approach
4A0C4BZ - Measurement of Biliary Pressure, Percutaneous Endoscopic Approach
4A0C75Z - Measurement of Biliary Flow, Via Natural or Artificial Opening
4A0C7BZ - Measurement of Biliary Pressure, Via Natural or Artificial Opening
4A0C85Z - Measurement of Biliary Flow, Via Natural or Artificial Opening Endoscopic
4A0C8BZ - Measurement of Biliary Pressure, Via Natural or Artificial Opening Endoscopic
4A0D73Z - Measurement of Urinary Contractility, Via Natural or Artificial Opening
4A0D75Z - Measurement of Urinary Flow, Via Natural or Artificial Opening
4A0D7BZ - Measurement of Urinary Pressure, Via Natural or Artificial Opening
4A0D7DZ - Measurement of Urinary Resistance, Via Natural or Artificial Opening
4A0D7LZ - Measurement of Urinary Volume, Via Natural or Artificial Opening
4A0D83Z - Measurement of Urinary Contractility, Via Natural or Artificial Opening Endoscopic
4A0D85Z - Measurement of Urinary Flow, Via Natural or Artificial Opening Endoscopic
4A0D8BZ - Measurement of Urinary Pressure, Via Natural or Artificial Opening Endoscopic
4A0D8DZ - Measurement of Urinary Resistance, Via Natural or Artificial Opening Endoscopic
4A0D8LZ - Measurement of Urinary Volume, Via Natural or Artificial Opening Endoscopic
4A0F33Z - Measurement of Musculoskeletal Contractility, Percutaneous Approach
4A0F3BE - Measurement of Musculoskeletal Pressure, Compartment, Percutaneous Approach
4A0FX3Z - Measurement of Musculoskeletal Contractility, External Approach
4A0H74Z - Measurement of Products of Conception, Cardiac Electrical Activity, Via Natural or Artificial Opening
4A0H7CZ - Measurement of Products of Conception, Cardiac Rate, Via Natural or Artificial Opening
4A0H7FZ - Measurement of Products of Conception, Cardiac Rhythm, Via Natural or Artificial Opening
4A0H7HZ - Measurement of Products of Conception, Cardiac Sound, Via Natural or Artificial Opening
4A0H84Z - Measurement of Products of Conception, Cardiac Electrical Activity, Via Natural or Artificial Opening Endoscopic
4A0H8CZ - Measurement of Products of Conception, Cardiac Rate, Via Natural or Artificial Opening Endoscopic
4A0H8FZ - Measurement of Products of Conception, Cardiac Rhythm, Via Natural or Artificial Opening Endoscopic
4A0H8HZ - Measurement of Products of Conception, Cardiac Sound, Via Natural or Artificial Opening Endoscopic
4A0HX4Z - Measurement of Products of Conception, Cardiac Electrical Activity, External Approach
4A0HXCZ - Measurement of Products of Conception, Cardiac Rate, External Approach
4A0HXFZ - Measurement of Products of Conception, Cardiac Rhythm, External Approach
4A0HXHZ - Measurement of Products of Conception, Cardiac Sound, External Approach
4A0J72Z - Measurement of Products of Conception, Nervous Conductivity, Via Natural or Artificial Opening
4A0J74Z - Measurement of Products of Conception, Nervous Electrical Activity, Via Natural or Artificial Opening
4A0J7BZ - Measurement of Products of Conception, Nervous Pressure, Via Natural or Artificial Opening
4A0J82Z - Measurement of Products of Conception, Nervous Conductivity, Via Natural or Artificial Opening Endoscopic
4A0J84Z - Measurement of Products of Conception, Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopic
4A0J8BZ - Measurement of Products of Conception, Nervous Pressure, Via Natural or Artificial Opening Endoscopic
4A0JX2Z - Measurement of Products of Conception, Nervous Conductivity, External Approach
4A0JX4Z - Measurement of Products of Conception, Nervous Electrical Activity, External Approach
4A0JXBZ - Measurement of Products of Conception, Nervous Pressure, External Approach
4A0Z76Z - Measurement of Metabolism, Via Natural or Artificial Opening
4A0Z7KZ - Measurement of Temperature, Via Natural or Artificial Opening
4A0ZX6Z - Measurement of Metabolism, External Approach
4A0ZXKZ - Measurement of Temperature, External Approach
4A0ZXQZ - Measurement of Sleep, External Approach
