PO HCPCS Level II modifier: Excepted service provided at an off-campus, outpatient, provider-based department of a hospital
PO is a HCPCS Level II modifier: “Excepted service provided at an off-campus, outpatient, provider-based department of a hospital.” It adds this detail to the code it is reported with.
Official description
POExcepted service provided at an off-campus, outpatient, provider-based department of a hospital
Short description: Excepted off-campus service
HCPCS · United States
Notes for PO
As CMS prints them, with any note PO takes from the headings above it.
Note
- CMS processing note 0207: BBA 2015 SEC 603.
Medicare details
The indicators CMS publishes with PO in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 2015
Where PO sits
- 1GroupHCPCS modifiers
- 2Modifier POExcepted service provided at an off-campus, outpatient, provider-based department of a hospital
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 PO mean?
PO is the HCPCS code for “Excepted service provided at an off-campus, outpatient, provider-based department of a hospital” in CMS’s HCPCS Level II October 2026 release.
Where is PO in the HCPCS Level II list?
PO is listed under Modifiers.
Does Medicare cover PO?
CMS lists PO’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 PO
All modifiersPCWrong surgery or other invasive procedure on patientPDDiagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 daysPIPositron emission tomography (pet) or pet/computed tomography (ct) to inform the initial treatment strategy of tumors that are biopsy proven or strongly suspected of being…PLProgressive addition lensesPMPost mortemPNNon-excepted service provided at an off-campus, outpatient, provider-based department of a hospitalPSPositron emission tomography (pet) or pet/computed tomography (ct) to inform the subsequent treatment strategy of cancerous tumors when the beneficiary's treating physician…PTColorectal cancer screening test; converted to diagnostic test or other procedureQ0Investigational clinical service provided in a clinical research study that is in an approved clinical research studyQ1Routine clinical service provided in a clinical research study that is in an approved clinical research studyQ2Demonstration procedure/serviceQ3Live kidney donor surgery and related services