J0300 HCPCS Level II code: Injection, amobarbital, up to 125 mg

J0300 is the HCPCS code for “Injection, amobarbital, up to 125 mg” in CMS’s October 2026 release, in effect from Oct 1, 2026.

Official description

J0300

Injection, amobarbital, up to 125 mg

Short description: Amobarbital 125 mg inj

HCPCS · United States

Medicare details

The indicators CMS publishes with J0300 in its October 2026 file. They describe Medicare’s handling, not another payer’s.

Medicare coverage
Special coverage instructions apply
Medicare pricing
Drugs
ASC
Approved for ambulatory surgical centers
Type of service
Medical care; Lump sum purchase of DME, prosthetics, orthotics
BETOS category
Other drugs
Added
Jan 1, 1982

Where J0300 sits

  1. 1J codesDrugs administered other than orally
  2. 2Active code J0300Injection, amobarbital, up to 125 mg

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 J0300 mean?

J0300 is the HCPCS code for “Injection, amobarbital, up to 125 mg” in CMS’s HCPCS Level II October 2026 release.

Does Medicare cover J0300?

CMS lists J0300’s Medicare coverage as “Special coverage instructions apply” and its pricing as “Drugs”. 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.