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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group BB34 includes procedures performed to image structures in the lungs. These ICD-10-PCS codes are used for inpatient documentation when magnetic resonance imaging of the bilateral lungs is performed with computer reformatted multiplanar display. Accurate coding within the ICD-10-PCS BB34 group is essential for proper inpatient reimbursement, as it captures the specific imaging procedure performed and supports clinical documentation accuracy.

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Lungs Magnetic Resonance Imaging Procedure Overview

This procedure group covers magnetic resonance imaging of the bilateral lungs and targets the respiratory system. Procedures in this group involve capture and computer reformatting of multiplanar images generated from radiofrequency signals emitted by nuclei within a magnetic field. Accurate ICD-10-PCS coding ensures inpatient records reflect the specific imaging performed and supports appropriate case mix classification and reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
B	Body System	Respiratory System
3	Operation	Magnetic Resonance Imaging (MRI)
4	Body Part	Lungs, Bilateral

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

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Lungs Magnetic Resonance Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
B	Body System	Respiratory System
3	Operation	Magnetic Resonance Imaging (MRI)
4	Body Part	Lungs, Bilateral

When to Use

Use a code from this group when magnetic resonance imaging is performed on both lungs with computer reformatted multiplanar display during an inpatient stay. Select the specific code when the imaging modality and body part match the documented procedure to ensure accurate inpatient coding and billing.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
BB34Z3Z	Magnetic Resonance Imaging (MRI) of Bilateral Lungs using Hyperpolarized Xenon 129 (Xe-129)

Typical Clinical Scenarios

A hospitalized adult with acute hypoxemic respiratory failure after inhalational injury from a chemical exposure is deteriorating despite conventional imaging; clinicians obtain detailed functional and regional ventilation information to guide ventilator settings and targeted therapies, prompting inpatient magnetic resonance imaging of both lungs with hyperpolarized xenon-129 to assess ventilation distribution and gas-exchange defects. Typical codes: BB34Z3Z
A middle-aged patient admitted electively for preoperative evaluation prior to lung-sparing thoracic surgery for multifocal pulmonary fibrosis undergoes advanced pulmonary imaging to map regional ventilation and identify disease heterogeneity; bilateral lung MRI using hyperpolarized xenon-129 is performed during the inpatient preoperative workup to inform surgical planning and prognostication. Typical codes: BB34Z3Z
A post-lung-transplant inpatient with progressive dyspnea and suspected chronic rejection undergoes evaluation for early bronchiolitis obliterans; clinicians perform bilateral lung MRI with hyperpolarized xenon-129 to noninvasively assess small-airway ventilation impairment and regional gas-exchange abnormalities as part of the complication workup. Typical codes: BB34Z3Z

ICD-10-PCS Code For Lung Apices: 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
BB34Z3Z	Magnetic Resonance Imaging (MRI) of Bilateral Lungs using Hyperpolarized Xenon 129 (Xe-129)

Typical Clinical Scenarios

A hospitalized adult with acute hypoxemic respiratory failure after inhalational injury from a chemical exposure is deteriorating despite conventional imaging; clinicians obtain detailed functional and regional ventilation information to guide ventilator settings and targeted therapies, prompting inpatient magnetic resonance imaging of both lungs with hyperpolarized xenon-129 to assess ventilation distribution and gas-exchange defects. Typical codes: BB34Z3Z
A middle-aged patient admitted electively for preoperative evaluation prior to lung-sparing thoracic surgery for multifocal pulmonary fibrosis undergoes advanced pulmonary imaging to map regional ventilation and identify disease heterogeneity; bilateral lung MRI using hyperpolarized xenon-129 is performed during the inpatient preoperative workup to inform surgical planning and prognostication. Typical codes: BB34Z3Z
A post-lung-transplant inpatient with progressive dyspnea and suspected chronic rejection undergoes evaluation for early bronchiolitis obliterans; clinicians perform bilateral lung MRI with hyperpolarized xenon-129 to noninvasively assess small-airway ventilation impairment and regional gas-exchange abnormalities as part of the complication workup. Typical codes: BB34Z3Z

ICD-10-PCS Code For Lung Apices: 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.

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

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Lungs Magnetic Resonance Imaging Procedure Overview

Code Attributes

OpenPayer

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

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

Lungs Magnetic Resonance Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

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

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

Lungs Magnetic Resonance Imaging Procedure Overview

Code Attributes

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

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

Lungs Magnetic Resonance Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in ICD-10-PCS code group BB34?

What is the specific ICD-10-PCS code listed for MRI of bilateral lungs with Xe-129?

How does accurate coding within BB34 affect inpatient records?

What are the section, body system, and operation attributes for BB34 codes?

Is BB34 intended for outpatient use or inpatient documentation?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in ICD-10-PCS code group BB34?

What is the specific ICD-10-PCS code listed for MRI of bilateral lungs with Xe-129?

How does accurate coding within BB34 affect inpatient records?

What are the section, body system, and operation attributes for BB34 codes?

Is BB34 intended for outpatient use or inpatient documentation?

References