UG HCPCS Level II modifier: Services provided in the afternoon
UG is a HCPCS Level II modifier: “Services provided in the afternoon.” It adds this detail to the code it is reported with.
Official description
UGServices provided in the afternoon
Short description: Services provided, afternoon
HCPCS · United States
Medicare details
The indicators CMS publishes with UG in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Added
- Apr 1, 2003
Where UG sits
- 1GroupHCPCS modifiers
- 2Modifier UGServices provided in the afternoon
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 UG mean?
UG is the HCPCS code for “Services provided in the afternoon” in CMS’s HCPCS Level II October 2026 release.
Where is UG in the HCPCS Level II list?
UG is listed under Modifiers.
Does Medicare cover UG?
CMS lists UG’s Medicare coverage as “Not payable by Medicare”. 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 UG
All modifiersUAMedicaid level of care 10, as defined by each stateUBMedicaid level of care 11, as defined by each stateUCMedicaid level of care 12, as defined by each stateUDMedicaid level of care 13, as defined by each stateUEUsed durable medical equipmentUFServices provided in the morningUHServices provided in the eveningUJServices provided at nightUKServices provided on behalf of the client to someone other than the client (collateral relationship)UNTwo patients servedUPThree patients servedUQFour patients served