C9311 HCPCS Level II code: 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…

C9311 is the HCPCS 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)” in CMS’s October 2026 release, in effect from Oct 1, 2026.

Official description

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)

Short description: Inj, eplontersen, 1 mg

HCPCS · United States

Medicare details

The indicators CMS publishes with C9311 in its October 2026 file. They describe Medicare’s handling, not another payer’s.

Medicare coverage
Special coverage instructions apply
Medicare pricing
Statute
ASC
Approved for ambulatory surgical centers
Type of service
Medical care
BETOS category
Other drugs
Coverage statute
1833(t)
Added
Oct 1, 2026

Where C9311 sits

  1. 1C codesOutpatient prospective payment system
  2. 2Active code C9311Injection, 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)

Source and release

Data release
HCPCS Level II · October 2026
Effective date
Oct 1, 2026
Publisher
CMS

This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does HCPCS code C9311 mean?

C9311 is the HCPCS 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)” in CMS’s HCPCS Level II October 2026 release.

Does Medicare cover C9311?

CMS lists C9311’s Medicare coverage as “Special coverage instructions apply” and its pricing as “Statute”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.

Which HCPCS Level II release does this page use?

It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.