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 4B09 includes procedures performed to measure physiological device function in the respiratory system. These ICD-10-PCS codes are used for inpatient documentation when clinicians perform external measurement or monitoring of a respiratory pacemaker or other respiratory physiological devices to determine current functional levels. Accurate coding within the ICD-10-PCS 4B09 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Respiratory Measurement Procedure Overview

Procedures in this group involve measurement and monitoring of respiratory pacemaker function using external approaches and devices that interact with the respiratory system. These measurements target physiological devices controlling respiration and record levels of respiratory activity or device output at a point in time. Accurate ICD-10-PCS coding for these measurements is important for inpatient reimbursement because it documents the monitoring performed and supports appropriate case mix assignment and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
4	Section	Measurement and Monitoring
B	Body System	Physiological Devices
0	Operation	Measurement
9	Body Part	Respiratory

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

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Respiratory Measurement Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
4	Section	Measurement and Monitoring
B	Body System	Physiological Devices
0	Operation	Measurement
9	Body Part	Respiratory

When to Use

Use a code from this group when an external measurement or monitoring procedure is performed to determine the current level of a respiratory pacemaker or other respiratory physiological device. These codes apply when the sole intent of the encounter is measurement and monitoring rather than adjustment, implantation, or removal.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
4B09XSZ	Measurement of Respiratory Pacemaker, External Approach

Typical Clinical Scenarios

A postoperative patient on the inpatient floor with a newly implanted external respiratory pacing system is observed to have intermittent episodes of hypoventilation and variable pacing capture. Clinicians perform bedside external measurement of the respiratory pacemaker output and device-triggered respiratory rates to document current function and determine whether therapeutic settings or troubleshooting are needed. Typical codes: 4B09XSZ
An elective admission for scheduled evaluation of a home external respiratory pacemaker in a patient with chronic central hypoventilation syndrome who requires periodic inpatient device performance checks. The inpatient measurement procedure is performed to record baseline device output levels and respiratory response under monitored conditions before discharge planning. Typical codes: 4B09XSZ
An acute respiratory deterioration in a patient with an external respiratory pacemaker following trauma; the device is interrogated externally in the intensive care unit to assess whether device malfunction or inadequate output is contributing to the respiratory compromise. Measurement of the pacemaker’s external output and respiratory effect is performed to guide immediate management. Typical codes: 4B09XSZ

Related Codes

4B00-CENTRAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Central Nervous: Procedure Code Group Overview

4B01-PERIPHERAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Peripheral Nervous: Procedure Code Group Overview

4B02-CARDIAC-MEASUREMENT

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

4B0F-MUSCULOSKELETAL-MEASUREMENT

ICD-10-PCS Code For Musculoskeletal: 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

1 rows

ICD-10-PCS Code	Description
4B09XSZ	Measurement of Respiratory Pacemaker, External Approach

Typical Clinical Scenarios

A postoperative patient on the inpatient floor with a newly implanted external respiratory pacing system is observed to have intermittent episodes of hypoventilation and variable pacing capture. Clinicians perform bedside external measurement of the respiratory pacemaker output and device-triggered respiratory rates to document current function and determine whether therapeutic settings or troubleshooting are needed. Typical codes: 4B09XSZ
An elective admission for scheduled evaluation of a home external respiratory pacemaker in a patient with chronic central hypoventilation syndrome who requires periodic inpatient device performance checks. The inpatient measurement procedure is performed to record baseline device output levels and respiratory response under monitored conditions before discharge planning. Typical codes: 4B09XSZ
An acute respiratory deterioration in a patient with an external respiratory pacemaker following trauma; the device is interrogated externally in the intensive care unit to assess whether device malfunction or inadequate output is contributing to the respiratory compromise. Measurement of the pacemaker’s external output and respiratory effect is performed to guide immediate management. Typical codes: 4B09XSZ

Related Codes

4B00-CENTRAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Central Nervous: Procedure Code Group Overview

4B01-PERIPHERAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Peripheral Nervous: Procedure Code Group Overview

4B02-CARDIAC-MEASUREMENT

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

4B0F-MUSCULOSKELETAL-MEASUREMENT

ICD-10-PCS Code For Musculoskeletal: 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 Measurement 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 Measurement Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the ICD-10-PCS code group 4B09?

Which specific ICD-10-PCS code represents measurement of a respiratory pacemaker via an external approach?

Why is accurate coding within the 4B09 group important for inpatient reimbursement?

What are the code attributes for procedures in this group?

How are measurements in this group typically performed?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the ICD-10-PCS code group 4B09?

Which specific ICD-10-PCS code represents measurement of a respiratory pacemaker via an external approach?

Why is accurate coding within the 4B09 group important for inpatient reimbursement?

What are the code attributes for procedures in this group?

How are measurements in this group typically performed?

References