JZ HCPCS Level II modifier: Zero drug amount discarded/not administered to any patient
JZ is a HCPCS Level II modifier: “Zero drug amount discarded/not administered to any patient.” It adds this detail to the code it is reported with.
Official description
JZZero drug amount discarded/not administered to any patient
Short description: Zero drug wasted
HCPCS · United States
Medicare details
The indicators CMS publishes with JZ in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 2023
Where JZ sits
- 1GroupHCPCS modifiers
- 2Modifier JZZero drug amount discarded/not administered to any patient
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 JZ mean?
JZ is the HCPCS code for “Zero drug amount discarded/not administered to any patient” in CMS’s HCPCS Level II October 2026 release.
Where is JZ in the HCPCS Level II list?
JZ is listed under Modifiers.
Does Medicare cover JZ?
CMS lists JZ’s Medicare coverage as “Carrier judgment”. 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.
Codes beside JZ
All modifiersJEAdministered via dialysateJFCompounded drugJGDrug or biological acquired with 340b drug pricing program discount, reported for informational purposesJKOne month supply or less of drug or biologicalJLThree month supply of drug or biologicalJWDrug amount discarded/not administered to any patientK0Lower extremity prosthesis functional level 0 - does not have the ability or potential to ambulate or transfer safely with or without assistance and a prosthesis does not enhance…K1Lower extremity prosthesis functional level 1 - has the ability or potential to use a prosthesis for transfers or ambulation on level surfaces at fixed cadence. typical of the…K2Lower extremity prosthesis functional level 2 - has the ability or potential for ambulation with the ability to traverse low level environmental barriers such as curbs, stairs or…K3Lower extremity prosthesis functional level 3 - has the ability or potential for ambulation with variable cadence. typical of the community ambulator who has the ability to…K4Lower extremity prosthesis functional level 4 - has the ability or potential for prosthetic ambulation that exceeds the basic ambulation skills, exhibiting high impact, stress…KAAdd on option/accessory for wheelchair