HCPCS Level II · Outpatient PPS (temporary codes)
C9791Magnetic resonance imaging with inhaled hyperpolarized xenon-129 contrast agent, chest, including preparation and administration of agent
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About C9791
C9791 is an HCPCS Level II code in the C series (outpatient PPS (temporary codes)), describing magnetic resonance imaging with inhaled hyperpolarized xenon-129 contrast agent, chest, including preparation and administration of agent.
It was added to HCPCS effective 10/01/2023.
Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.
Details
- Short description
- Mri hyperpolarized xenon129
- Date added
- 10/01/2023
- Action effective
- 10/01/2023
- BETOS
- I2D
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Common questions about C9791
Is HCPCS C9791 still valid?
- Yes. C9791 is active in the CMS October 2026 HCPCS file.
Does Medicare cover C9791?
- Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.