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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CB3Y includes procedures performed to image structures and functions in the respiratory system using positron emission tomographic techniques. These ICD-10-PCS codes are used for inpatient documentation when a radionuclide tracer is introduced for three-dimensional respiratory system imaging and simultaneous capture of emissions is required. Accurate coding within the ICD-10-PCS CB3Y group is essential for proper inpatient reimbursement, as it captures the specific imaging procedure performed and supports clinical documentation accuracy.

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Respiratory System Positron Emission Tomographic Imaging Procedure Overview

This procedure group includes positron emission tomographic imaging studies targeting the respiratory system that use radionuclide tracers to create three-dimensional images. These procedures involve introduction of radioactive materials and capture of emissions to visualize lung structure and function within the respiratory system. Accurate ICD-10-PCS coding is important to reflect the specific imaging modality and radionuclide used, which affects inpatient documentation and reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
B	Body System	Respiratory System
3	Operation	Positron Emission Tomographic (PET) Imaging
Y	Body Part	Respiratory System

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

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Respiratory System Positron Emission Tomographic Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
B	Body System	Respiratory System
3	Operation	Positron Emission Tomographic (PET) Imaging
Y	Body Part	Respiratory System

When to Use

Use a code from this group when a PET imaging study of the respiratory system is performed with introduction of a radionuclide tracer for three-dimensional emission capture. Do not use these codes for other imaging modalities or for procedures targeting non-respiratory anatomy.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
CB3YYZZ	Positron Emission Tomographic (PET) Imaging of Respiratory System using Other Radionuclide

Typical Clinical Scenarios

An inpatient with a newly discovered solitary pulmonary nodule on chest CT during hospital evaluation for hemoptysis is admitted for further workup; because tissue diagnosis is pending and there is concern for metabolically active malignancy or multifocal disease, a PET study targeting the respiratory system is performed to assess metabolic activity and whole-lung involvement prior to biopsy or surgical planning. Typical codes: CB3YYZZ
A patient with a history of treated lung cancer is hospitalized for worsening dyspnea and suspected recurrent or metastatic disease after recent equivocal chest imaging; to evaluate recurrent tumor activity within the lungs and guide urgent oncologic or interventional decisions during the admission, a respiratory system PET imaging study using a radionuclide tracer is obtained. Typical codes: CB3YYZZ
An inpatient in the pulmonology service with unexplained progressive parenchymal lung disease and atypical inflammatory vs neoplastic features on prior imaging is scheduled for specialized functional imaging to differentiate active inflammatory/infectious processes from neoplasm and to direct biopsy site selection while admitted for diagnostic workup. Typical codes: CB3YYZZ

Related Codes

CB32-LUNGS-AND-BRONCHI-PET-IMAGING

ICD-10-PCS Code For Lungs And Bronchi: 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
CB3YYZZ	Positron Emission Tomographic (PET) Imaging of Respiratory System using Other Radionuclide

Typical Clinical Scenarios

An inpatient with a newly discovered solitary pulmonary nodule on chest CT during hospital evaluation for hemoptysis is admitted for further workup; because tissue diagnosis is pending and there is concern for metabolically active malignancy or multifocal disease, a PET study targeting the respiratory system is performed to assess metabolic activity and whole-lung involvement prior to biopsy or surgical planning. Typical codes: CB3YYZZ
A patient with a history of treated lung cancer is hospitalized for worsening dyspnea and suspected recurrent or metastatic disease after recent equivocal chest imaging; to evaluate recurrent tumor activity within the lungs and guide urgent oncologic or interventional decisions during the admission, a respiratory system PET imaging study using a radionuclide tracer is obtained. Typical codes: CB3YYZZ
An inpatient in the pulmonology service with unexplained progressive parenchymal lung disease and atypical inflammatory vs neoplastic features on prior imaging is scheduled for specialized functional imaging to differentiate active inflammatory/infectious processes from neoplasm and to direct biopsy site selection while admitted for diagnostic workup. Typical codes: CB3YYZZ

Related Codes

CB32-LUNGS-AND-BRONCHI-PET-IMAGING

ICD-10-PCS Code For Lungs And Bronchi: 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 System: Procedure Code Group Overview

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

Respiratory System Positron Emission Tomographic Imaging Procedure Overview

Code Attributes

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

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

Respiratory System Positron Emission Tomographic Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers PET imaging of the respiratory system?

What section and operation attributes describe these procedures?

When should codes from the `CB3YYZZ` group be used in inpatient documentation?

Why is accurate coding within the CB3Y group important?

What does the `CB3YYZZ` code specifically indicate about the radionuclide used?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers PET imaging of the respiratory system?

What section and operation attributes describe these procedures?

When should codes from the `CB3YYZZ` group be used in inpatient documentation?

Why is accurate coding within the CB3Y group important?

What does the `CB3YYZZ` code specifically indicate about the radionuclide used?

References