ICD-10-PCS Code For Respiratory: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 5A09 includes procedures performed to assist respiratory physiological functions by extracorporeal means in the respiratory system. These ICD-10-PCS codes are used for inpatient documentation when a portion of respiratory function is taken over or supported outside the body, such as extracorporeal membrane oxygenation or other extracorporeal respiratory support. Accurate coding within the ICD-10-PCS 5A09 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Respiratory Assistance Procedure Overview

This procedure group includes extracorporeal assistance performed to take over or support respiratory function using devices such as extracorporeal membrane oxygenation or similar systems. These procedures target the physiological respiratory system and temporarily assume gas exchange or ventilatory responsibilities outside the body. Accurate ICD-10-PCS coding is important for inpatient reimbursement because it documents the level of support provided and supports correct case mix and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
5	Section	Extracorporeal or Systemic Assistance and Performance
A	Body System	Physiological Systems
0	Operation	Assistance
9	Body Part	Respiratory

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ICD-10-PCS Code For Respiratory: Procedure Code Group Overview

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Respiratory Assistance Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
5	Section	Extracorporeal or Systemic Assistance and Performance
A	Body System	Physiological Systems
0	Operation	Assistance
9	Body Part	Respiratory

When to Use

Use codes from this group when respiratory function is partially or wholly provided by extracorporeal devices during an inpatient encounter. Use these codes to report the specific type and duration of extracorporeal respiratory assistance provided.

ICD-10-PCS Codes

22 rows

ICD-10-PCS Code	Description
5A0920Z	Assistance with Respiratory Filtration, Continuous
5A09357	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Continuous Positive Airway Pressure
5A09358	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Intermittent Positive Airway Pressure
5A09359	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Continuous Negative Airway Pressure
5A0935A	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, High Flow/Velocity Cannula
5A0935B	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Intermittent Negative Airway Pressure
5A0935Z	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours
5A09457	Assistance with Respiratory Ventilation, 24-96 Consecutive Hours, Continuous Positive Airway Pressure
5A09458	Assistance with Respiratory Ventilation, 24-96 Consecutive Hours, Intermittent Positive Airway Pressure
5A09459	Assistance with Respiratory Ventilation, 24-96 Consecutive Hours, Continuous Negative Airway Pressure

Showing 1–10 of 22

Typical Clinical Scenarios

A young adult with severe acute respiratory distress syndrome (ARDS) from viral pneumonia is admitted to the ICU with refractory hypoxemia despite maximal conventional ventilation. Extracorporeal respiratory support is initiated to take over gas exchange for several days while the lungs recover, using continuous positive airway pressure mode on the extracorporeal system. The procedure is performed to provide sustained extracorporeal respiratory assistance and allow lung-protective ventilation strategies. Typical codes: 5A09557
An elderly patient with chronic respiratory failure undergoing a planned inpatient trial of shorter-term extracorporeal respiratory support after elective major thoracic surgery experiences transient ventilatory insufficiency. A less-than-24-hour session of extracorporeal assistance is used to support gas exchange postoperatively while the patient stabilizes and weans from mechanical ventilatory support. The intervention targets the respiratory physiological function extracorporeally to bridge the immediate postoperative period. Typical codes: 5A09357
A middle-aged patient intubated for prolonged respiratory failure develops prone positioning as an adjunct to improve oxygenation but requires continued extracorporeal respiratory assistance across multiple days in the intubated prone position. The extracorporeal support is continued and documented specifically for extended-duration assistance while the patient remains intubated and prone to manage severe hypoxemia and complications of lung injury. This documents prolonged extracorporeal respiratory ventilation with intubated prone positioning. Typical codes: 5A09D5K

Related Codes

5A02-CARDIAC-ASSISTANCE

ICD-10-PCS Code For Cardiac: Procedure Code Group Overview

5A05-PERIPHERAL-CIRCULATORY-TAKING-OVER-CIRCULATORY-ASSISTANCE

ICD-10-PCS Code For Circulatory: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-PCS Codes

22 rows

ICD-10-PCS Code	Description
5A0920Z	Assistance with Respiratory Filtration, Continuous
5A09357	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Continuous Positive Airway Pressure
5A09358	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Intermittent Positive Airway Pressure
5A09359	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Continuous Negative Airway Pressure
5A0935A	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, High Flow/Velocity Cannula
5A0935B	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours, Intermittent Negative Airway Pressure
5A0935Z	Assistance with Respiratory Ventilation, Less than 24 Consecutive Hours
5A09457	Assistance with Respiratory Ventilation, 24-96 Consecutive Hours, Continuous Positive Airway Pressure
5A09458	Assistance with Respiratory Ventilation, 24-96 Consecutive Hours, Intermittent Positive Airway Pressure
5A09459	Assistance with Respiratory Ventilation, 24-96 Consecutive Hours, Continuous Negative Airway Pressure

Showing 1–10 of 22

Typical Clinical Scenarios

A young adult with severe acute respiratory distress syndrome (ARDS) from viral pneumonia is admitted to the ICU with refractory hypoxemia despite maximal conventional ventilation. Extracorporeal respiratory support is initiated to take over gas exchange for several days while the lungs recover, using continuous positive airway pressure mode on the extracorporeal system. The procedure is performed to provide sustained extracorporeal respiratory assistance and allow lung-protective ventilation strategies. Typical codes: 5A09557
An elderly patient with chronic respiratory failure undergoing a planned inpatient trial of shorter-term extracorporeal respiratory support after elective major thoracic surgery experiences transient ventilatory insufficiency. A less-than-24-hour session of extracorporeal assistance is used to support gas exchange postoperatively while the patient stabilizes and weans from mechanical ventilatory support. The intervention targets the respiratory physiological function extracorporeally to bridge the immediate postoperative period. Typical codes: 5A09357
A middle-aged patient intubated for prolonged respiratory failure develops prone positioning as an adjunct to improve oxygenation but requires continued extracorporeal respiratory assistance across multiple days in the intubated prone position. The extracorporeal support is continued and documented specifically for extended-duration assistance while the patient remains intubated and prone to manage severe hypoxemia and complications of lung injury. This documents prolonged extracorporeal respiratory ventilation with intubated prone positioning. Typical codes: 5A09D5K

Related Codes

5A02-CARDIAC-ASSISTANCE

ICD-10-PCS Code For Cardiac: Procedure Code Group Overview

5A05-PERIPHERAL-CIRCULATORY-TAKING-OVER-CIRCULATORY-ASSISTANCE

ICD-10-PCS Code For Circulatory: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-PCS Code For Respiratory: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Respiratory: Procedure Code Group Overview policy alerts

Respiratory Assistance Procedure Overview

Code Attributes

ICD-10-PCS Code For Respiratory: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Respiratory: Procedure Code Group Overview policy alerts

Respiratory Assistance Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 5A09 code group?

How are duration and mode represented in the 5A09 codes?

Which code denotes assistance with respiratory filtration?

Are there specific codes for intubated prone positioning during respiratory assistance?

Why is accurate coding within the 5A09 group important for inpatient care?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 5A09 code group?

How are duration and mode represented in the 5A09 codes?

Which code denotes assistance with respiratory filtration?

Are there specific codes for intubated prone positioning during respiratory assistance?

Why is accurate coding within the 5A09 group important for inpatient care?

References