UJ HCPCS Level II modifier: Services provided at night
UJ is a HCPCS Level II modifier: “Services provided at night.” It adds this detail to the code it is reported with.
Official description
UJServices provided at night
Short description: Services provided, night
HCPCS · United States
Medicare details
The indicators CMS publishes with UJ in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Apr 1, 2003
Where UJ sits
- 1GroupHCPCS modifiers
- 2Modifier UJServices provided at night
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 UJ mean?
UJ is the HCPCS code for “Services provided at night” in CMS’s HCPCS Level II October 2026 release.
Where is UJ in the HCPCS Level II list?
UJ is listed under Modifiers.
Does Medicare cover UJ?
CMS lists UJ’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 UJ
All modifiersUCMedicaid level of care 12, as defined by each stateUDMedicaid level of care 13, as defined by each stateUEUsed durable medical equipmentUFServices provided in the morningUGServices provided in the afternoonUHServices provided in the eveningUKServices provided on behalf of the client to someone other than the client (collateral relationship)UNTwo patients servedUPThree patients servedUQFour patients servedURFive patients servedUSSix or more patients served