UN Modifier
Two patients served
HCPCS modifierUN
- Description
- Two patients served
- Short description
- Two patients served
- Added
- January 1, 2004
- Last change
- January 1, 2004
What does the UN modifier mean?
The HCPCS Level II modifier UN means: “Two patients served”. Append it to a HCPCS or CPT code on the claim line when the payer’s policy calls for it; placement and payment effects are defined by each payer.
Other U modifiers
- U1 – Medicaid level of care 1, as defined by each state
- U2 – Medicaid level of care 2, as defined by each state
- U3 – Medicaid level of care 3, as defined by each state
- U4 – Medicaid level of care 4, as defined by each state
- U5 – Medicaid level of care 5, as defined by each state
- U6 – Medicaid level of care 6, as defined by each state
- U7 – Medicaid level of care 7, as defined by each state
- U8 – Medicaid level of care 8, as defined by each state
- U9 – Medicaid level of care 9, as defined by each state
- UA – Medicaid level of care 10, as defined by each state
- UB – Medicaid level of care 11, as defined by each state
- UC – Medicaid level of care 12, as defined by each state
- UD – Medicaid level of care 13, as defined by each state
- UE – Used durable medical equipment
- UF – Services provided in the morning
- UG – Services provided in the afternoon
- UH – Services provided in the evening
- UJ – Services provided at night
- UK – Services provided on behalf of the client to someone other than the client (collateral relationship)
- UP – Three patients served
- UQ – Four patients served
- UR – Five patients served
- US – Six or more patients served