94453 Hast with suppl oxygen titrj
Also known as: HAST with oxygen titration, altitude test with oxygen, hypoxia testing with O2
Hypoxia altitude simulation test with supplemental oxygen titration to determine required oxygen supplementation for altitude exposure.
In Plain Language
altitude breathing test with oxygen; high altitude oxygen requirement test
Clinical Context
Used to determine appropriate oxygen prescription for patients with underlying lung disease who plan air travel or high-altitude activities.
RVU Breakdown
| Work RVU | 0.39 |
| Total RVU | 0.39 |
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 0.39, this code ranks in the 25th percentile among Medicine codes — 2.0x below the median (0.78). The highest wRVU in this category is 23.92.
Specialties
Frequently Asked Questions
What is CPT code 94453?
CPT 94453 (Hast with suppl oxygen titrj) is a Medicine code. Hypoxia altitude simulation test with supplemental oxygen titration to determine required oxygen supplementation for altitude exposure.
Who uses CPT code 94453?
CPT 94453 is used by Pulmonology, Aviation Medicine, Internal Medicine. Used to determine appropriate oxygen prescription for patients with underlying lung disease who plan air travel or high-altitude activities.
When is CPT 94453 used?
Used to determine appropriate oxygen prescription for patients with underlying lung disease who plan air travel or high-altitude activities.
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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.