C9791 – Magnetic resonance imaging with inhaled hyperpolarized xenon-129 contrast agent, chest, including preparation and administration of agent

HCPCS Level II code · C codes: Outpatient PPS (Hospital Outpatient)

Active code Special coverage instructions apply

HCPCS codeC9791
Long description
Magnetic resonance imaging with inhaled hyperpolarized xenon-129 contrast agent, chest, including preparation and administration of agent
Short description
Mri hyperpolarized xenon129
Pricing indicator
53 Statute
Medicare coverage
D Special coverage instructions apply
BETOS category
I2D Advanced imaging - MRI/MRA: other
Added
October 1, 2023
Last change
October 1, 2023 – No change

Frequently asked questions

What is HCPCS code C9791?

C9791 is a HCPCS Level II code for magnetic resonance imaging with inhaled hyperpolarized xenon-129 contrast agent, chest, including preparation and administration of agent.

Does Medicare cover C9791?

The HCPCS file lists coverage code D: Special coverage instructions apply. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby C codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.