94150 Vital capacity test
Also known as: vital capacity test, VC measurement, slow vital capacity
Vital capacity testing to measure the maximum volume of air that can be expelled from the lungs after maximum inhalation.
In Plain Language
lung capacity measurement; air volume test
Clinical Context
Used to assess baseline pulmonary reserve and detect restrictive lung disease; useful in patients unable to perform forced breathing maneuvers.
RVU Breakdown
| Work RVU | 0.07 |
| Total RVU | 0.07 |
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 0.07, this code ranks in the 3rd percentile among Medicine codes — 11.1x below the median (0.78). The highest wRVU in this category is 23.92.
Specialties
Frequently Asked Questions
What is CPT code 94150?
CPT 94150 (Vital capacity test) is a Medicine code. Vital capacity testing to measure the maximum volume of air that can be expelled from the lungs after maximum inhalation.
Who uses CPT code 94150?
CPT 94150 is used by Pulmonology, Internal Medicine, Neurology. Used to assess baseline pulmonary reserve and detect restrictive lung disease; useful in patients unable to perform forced breathing maneuvers.
When is CPT 94150 used?
Used to assess baseline pulmonary reserve and detect restrictive lung disease; useful in patients unable to perform forced breathing maneuvers.
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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.