G8601 – Iv thrombolytic therapy not initiated within 4.5 hours (<= 270 minutes) of time last known well for reasons documented by clinician (e.g. patient enrolled in clinical trial for stroke, patient admitted for elective carotid intervention)
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG8601
- Long description
- Iv thrombolytic therapy not initiated within 4.5 hours (<= 270 minutes) of time last known well for reasons documented by clinician (e.g. patient enrolled in clinical trial for stroke, patient admitted for elective carotid intervention)
- Short description
- No elig tpa init w/in 4.5 hr
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
M5DSpecialist - other- Added
- January 1, 2010
- Last change
- January 1, 2024 – No change
Frequently asked questions
What is HCPCS code G8601?
G8601 is a HCPCS Level II code for iv thrombolytic therapy not initiated within 4.5 hours (<= 270 minutes) of time last known well for reasons documented by clinician (e.g. patient enrolled in clinical trial for stroke, patient admitted for elective carotid intervention).
Does Medicare cover G8601?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby G codes
- G8587 – No anti-lipid treatment at discharge
- G8593 – Lipid profile results documented and reviewed (must include total cholesterol, hdl-c, triglycerides and calculated ldl-c)
- G8594 – Lipid profile not performed, reason not given
- G8595 – Most recent ldl-c < 100 mg/dl
- G8597 – Most recent ldl-c >= 100 mg/dl
- G8598 – Aspirin or another antiplatelet therapy used
- G8599 – Aspirin or another antiplatelet therapy not used, reason not given
- G8600 – Iv thrombolytic therapy initiated within 4.5 hours (<= 270 minutes) of time last known well
- G8602 – Iv thrombolytic therapy not initiated within 4.5 hours (<= 270 minutes) of time last known well, reason not given
- G8627 – Surgical procedure performed within 30 days following cataract surgery for major complications (e.g., retained nuclear fragments, endophthalmitis, dislocated or wrong power iol, retinal detachment, or wound dehiscence)
- G8628 – Surgical procedure not performed within 30 days following cataract surgery for major complications (e.g., retained nuclear fragments, endophthalmitis, dislocated or wrong power iol, retinal detachment, or wound dehiscence)
- G8629 – Documentation of order for prophylactic parenteral antibiotic to be given within one hour (if fluoroquinolone or vancomycin, two hours) prior to surgical incision (or start of procedure when no incision is required)
- G8630 – Documentation that administration of prophylactic parenteral antibiotics was initiated within one hour (if fluoroquinolone or vancomycin, two hours) prior to surgical incision (or start of procedure when no incision is required), as ordered
- G8631 – Clinician documented that patient was not an eligible candidate for ordering prophylactic parenteral antibiotics to be given within one hour (if fluoroquinolone or vancomycin, two hours) prior to surgical incision (or start of procedure when no incision is required)
- G8632 – Prophylactic parenteral antibiotics were not ordered to be given or given within one hour (if fluoroquinolone or vancomycin, two hours) prior to the surgical incision (or start of procedure when no incision is required), reason not given
- G8633 – Pharmacologic therapy (other than minerals/vitamins) for osteoporosis prescribed
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.