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Code deleted, see 78579, 78582-78598

Official Description

Pulmonary ventilation imaging, gaseous, single breath, single projection

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 78591 refers to pulmonary ventilation imaging, which is a diagnostic imaging technique used to assess the ventilation of the lungs. During this procedure, the patient inhales a radioactive gas, specifically Xenon, which is a noble gas that does not react chemically within the body. The inhalation of this gas allows for the visualization of lung function through imaging. A specialized camera captures images of the lungs as the gas is inhaled, highlighting areas that may be poorly ventilated. This imaging technique is crucial for identifying potential respiratory issues, as it provides valuable information about the distribution of air within the lungs and can help in diagnosing various pulmonary conditions. The single breath and single projection aspects of the procedure indicate that the imaging is performed after a single inhalation of the gas, capturing a snapshot of lung ventilation at that moment.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The pulmonary ventilation imaging procedure using CPT® Code 78591 is indicated for various clinical scenarios where assessment of lung ventilation is necessary. The following conditions may warrant this imaging technique:

  • Assessment of Lung Function This procedure is performed to evaluate the overall function of the lungs, particularly in patients with suspected respiratory disorders.
  • Diagnosis of Pulmonary Conditions It aids in diagnosing conditions such as chronic obstructive pulmonary disease (COPD), asthma, and other obstructive or restrictive lung diseases.
  • Preoperative Evaluation This imaging may be utilized in the preoperative assessment of patients undergoing lung surgery to determine the viability of lung tissue.
  • Monitoring of Lung Disease Progression It can be used to monitor the progression of known lung diseases and the effectiveness of treatment interventions.

2. Procedure

The procedure for pulmonary ventilation imaging using CPT® Code 78591 involves several key steps that ensure accurate imaging of lung ventilation. The following outlines the procedural steps:

  • Preparation of the Patient The patient is prepared for the procedure by explaining the process and ensuring they understand the importance of inhaling the radioactive gas. The patient may be asked to remove any clothing or accessories that could interfere with imaging.
  • Inhalation of Radioactive Xenon Gas The patient is instructed to inhale a specific amount of radioactive Xenon gas. This inhalation is typically done in a controlled environment to ensure safety and accuracy.
  • Imaging Capture Once the patient has inhaled the gas, a specialized camera is used to take images of the lungs. This camera captures the distribution of the gas within the lung fields, allowing for the visualization of areas that are well-ventilated versus those that are poorly ventilated.
  • Completion of the Procedure After the imaging is completed, the patient may be monitored briefly to ensure there are no immediate adverse reactions. The images obtained are then analyzed by a physician to assess lung function.

3. Post-Procedure

Post-procedure care for patients undergoing pulmonary ventilation imaging with CPT® Code 78591 is generally minimal. Patients are typically monitored for a short period to ensure they do not experience any adverse effects from the inhalation of the radioactive gas. It is important to inform patients that the amount of radiation exposure is low and considered safe for diagnostic purposes. Patients may resume normal activities immediately after the procedure unless otherwise directed by their physician. Follow-up appointments may be scheduled to discuss the results of the imaging and any further diagnostic or therapeutic steps that may be necessary based on the findings.

Short Descr VENT IMAGE 1 BREATH 1 PROJ
Medium Descr PULM VI GASEOUS 1 PRJCJ
Long Descr Pulmonary ventilation imaging, gaseous, single breath, single projection
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Discontinued Code
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
CCS Clinical Classification 208 - Radioisotope pulmonary scan
Date
Action
Notes
2012-01-01 Deleted Code deleted, see 78579, 78582-78598
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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Description
Code
Description
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