C9311 – Injection, eplontersen, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)
HCPCS Level II code · C codes: Outpatient PPS (Hospital Outpatient)
HCPCS codeC9311
- Long description
- Injection, eplontersen, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)
- Short description
- Inj, eplontersen, 1 mg
- Pricing indicator
53Statute- Medicare coverage
DSpecial coverage instructions apply- BETOS category
O1EOther drugs- ASC
- Approved for ambulatory surgical centers
- Added
- October 1, 2026
- Last change
- October 1, 2026 – Added
Frequently asked questions
What is HCPCS code C9311?
C9311 is a HCPCS Level II code for injection, eplontersen, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered).
Does Medicare cover C9311?
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.
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Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.