PA HCPCS Level II modifier: Surgical or other invasive procedure on wrong body part
PA is a HCPCS Level II modifier: “Surgical or other invasive procedure on wrong body part.” It adds this detail to the code it is reported with.
Official description
PASurgical or other invasive procedure on wrong body part
Short description: Surgery, wrong body part
HCPCS · United States
Medicare details
The indicators CMS publishes with PA in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Added
- Jul 1, 2009
Where PA sits
- 1GroupHCPCS modifiers
- 2Modifier PASurgical or other invasive procedure on wrong body part
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 PA mean?
PA is the HCPCS code for “Surgical or other invasive procedure on wrong body part” in CMS’s HCPCS Level II October 2026 release.
Where is PA in the HCPCS Level II list?
PA is listed under Modifiers.
Does Medicare cover PA?
CMS lists PA’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 PA
All modifiersP1A normal healthy patientP2A patient with mild systemic diseaseP3A patient with severe systemic diseaseP4A patient with severe systemic disease that is a constant threat to lifeP5A moribund patient who is not expected to survive without the operationP6A declared brain-dead patient whose organs are being removed for donor purposesPBSurgical or other invasive procedure on wrong patientPCWrong 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 mortem