94726 Plethysmography lung volumes
Also known as: body plethysmography, lung volume measurement, plethysmography
Plethysmography to measure lung volumes including total lung capacity, functional residual capacity, and residual volume.
In Plain Language
lung capacity measurement chamber; air volume in lungs test
Clinical Context
Used to assess restrictive lung disease, hyperinflation, and air trapping; essential for detecting and monitoring obstructive and restrictive patterns.
RVU Breakdown
| Work RVU | 0.25 |
| Total RVU | 0.25 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Medicine section codes cover a wide range of non-surgical services. Documentation should include the clinical indication, procedure details, interpretation (if applicable), and any patient-specific findings.
How This Code Compares
With a work RVU of 0.25, this code ranks in the 16th percentile among Medicine codes — 3.1x below the median (0.78). The highest wRVU in this category is 23.92.
Specialties
Frequently Asked Questions
What is CPT code 94726?
CPT 94726 (Plethysmography lung volumes) is a Medicine code. Plethysmography to measure lung volumes including total lung capacity, functional residual capacity, and residual volume.
Who uses CPT code 94726?
CPT 94726 is used by Pulmonology, Internal Medicine, Occupational Medicine. Used to assess restrictive lung disease, hyperinflation, and air trapping; essential for detecting and monitoring obstructive and restrictive patterns.
When is CPT 94726 used?
Used to assess restrictive lung disease, hyperinflation, and air trapping; essential for detecting and monitoring obstructive and restrictive patterns.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.