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 CB1Y includes procedures performed to image the respiratory system using single-plane nuclear medicine techniques. These ICD-10-PCS codes are used for inpatient documentation when planar nuclear medicine imaging with radionuclide administration is performed to assess lung ventilation, perfusion, or other respiratory function. Accurate coding within the ICD-10-PCS CB1Y group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Respiratory System Planar Nuclear Medicine Imaging Procedure Overview

Procedures in this group involve introduction of radioactive materials and capture of single-plane images of the respiratory system using radionuclide emissions. They target the respiratory system to evaluate ventilation, perfusion, or other functional aspects of lungs and airways. Accurate ICD-10-PCS coding ensures inpatient records reflect the imaging performed and supports appropriate reimbursement and case-mix classification.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
B	Body System	Respiratory System
1	Operation	Planar Nuclear Medicine 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 Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
B	Body System	Respiratory System
1	Operation	Planar Nuclear Medicine Imaging
Y	Body Part	Respiratory System

When to Use

Use a code from this group when inpatient planar nuclear medicine imaging of the respiratory system is performed with administration of a radionuclide. These codes apply when single-plane emission images are acquired to evaluate ventilation, perfusion, or other respiratory functional studies.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
CB1YYZZ	Planar Nuclear Medicine Imaging of Respiratory System using Other Radionuclide

Typical Clinical Scenarios

An elderly inpatient with acute unexplained hypoxemia and multiple pulmonary embolism risk factors is admitted for evaluation after sudden onset dyspnea. To assess regional lung perfusion and ventilation mismatch when CT angiography is contraindicated due to contrast allergy or renal impairment, planar radionuclide imaging of the lungs is performed to guide anticoagulation decisions. Typical codes: CB1YYZZ
A hospitalized preoperative patient with chronic obstructive pulmonary disease and borderline pulmonary function is scheduled for lung volume reduction surgery; the care team requires functional mapping of ventilation and perfusion to determine surgical candidacy. A planar nuclear medicine study is obtained to evaluate regional lung function and identify areas to preserve or resect prior to the elective operation. Typical codes: CB1YYZZ
An inpatient with persistent fever and suspected postoperative pulmonary complication after thoracic surgery has inconclusive chest radiograph and needs functional assessment to distinguish atelectasis from pulmonary embolism. Planar nuclear medicine imaging of the respiratory system is used to evaluate ventilation–perfusion relationships as part of the diagnostic workup for the complication. Typical codes: CB1YYZZ

Related Codes

CB12-LUNGS-AND-BRONCHI-PLANAR-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
CB1YYZZ	Planar Nuclear Medicine Imaging of Respiratory System using Other Radionuclide

Typical Clinical Scenarios

An elderly inpatient with acute unexplained hypoxemia and multiple pulmonary embolism risk factors is admitted for evaluation after sudden onset dyspnea. To assess regional lung perfusion and ventilation mismatch when CT angiography is contraindicated due to contrast allergy or renal impairment, planar radionuclide imaging of the lungs is performed to guide anticoagulation decisions. Typical codes: CB1YYZZ
A hospitalized preoperative patient with chronic obstructive pulmonary disease and borderline pulmonary function is scheduled for lung volume reduction surgery; the care team requires functional mapping of ventilation and perfusion to determine surgical candidacy. A planar nuclear medicine study is obtained to evaluate regional lung function and identify areas to preserve or resect prior to the elective operation. Typical codes: CB1YYZZ
An inpatient with persistent fever and suspected postoperative pulmonary complication after thoracic surgery has inconclusive chest radiograph and needs functional assessment to distinguish atelectasis from pulmonary embolism. Planar nuclear medicine imaging of the respiratory system is used to evaluate ventilation–perfusion relationships as part of the diagnostic workup for the complication. Typical codes: CB1YYZZ

Related Codes

CB12-LUNGS-AND-BRONCHI-PLANAR-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 Planar Nuclear Medicine 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 Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in ICD-10-PCS code group CB1Y?

What is the primary purpose of using `CB1YYZZ` in inpatient documentation?

Which ICD-10-PCS section and attributes describe this procedure group?

How does accurate coding within CB1Y affect reimbursement and records?

For what clinical targets are planar nuclear medicine images acquired under this code group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in ICD-10-PCS code group CB1Y?

What is the primary purpose of using `CB1YYZZ` in inpatient documentation?

Which ICD-10-PCS section and attributes describe this procedure group?

How does accurate coding within CB1Y affect reimbursement and records?

For what clinical targets are planar nuclear medicine images acquired under this code group?

References