G8577 — Re-exploration required due to mediastinal bleeding with or without tamponade, unplanned coronary artery intervention (native, vessel, graft, or both), valve dysfunction, aortic reintervention, or other cardiac reason
G8577 is a HCPCS Level II code for re-exploration required due to mediastinal bleeding with or without tamponade, unplanned coronary artery intervention (native, vessel, graft, or both), valve dysfunction, aortic reintervention, or other cardiac reason. It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusM
Measurement code. Used for reporting purposes only; never paid.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for G8577
- Long descriptor
- Re-exploration required due to mediastinal bleeding with or without tamponade, unplanned coronary artery intervention (native, vessel, graft, or both), valve dysfunction, aortic reintervention, or other cardiac reason
- Short descriptor
- Reop req bld grft oth
- Added
- January 1, 2010
- BETOS
- M5D
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to G8577
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G8577 is not quite right, the correct code is very often within a few positions of it.
- G8569Prolonged postoperative intubation (> 24 hrs) required
- G8570Prolonged postoperative intubation (> 24 hrs) not required
- G8571Development of deep sternal wound infection/mediastinitis within 30 days postoperativelyterminated
- G8572No deep sternal wound infection/mediastinitisterminated
- G8573Stroke following isolated cabg surgeryterminated
- G8574No stroke following isolated cabg surgeryterminated
- G8575Developed postoperative renal failure or required dialysis
- G8576No postoperative renal failure/dialysis not required
- G8578Re-exploration not required due to mediastinal bleeding with or without tamponade, unplanned coronary artery intervention (native, vessel, graft, or both), valve dysfunction, aortic reintervention, or other cardiac reason
- G8579Antiplatelet medication at dischargeterminated
- G8580Antiplatelet medication contraindicatedterminated
- G8581No antiplatelet medication at dischargeterminated
- G8582Beta-blocker at dischargeterminated
- G8583Beta-blocker contraindicatedterminated
- G8584No beta-blocker at dischargeterminated
- G8585Anti-lipid treatment at dischargeterminated
Questions about G8577
What is HCPCS code G8577?
G8577 is a HCPCS Level II code for re-exploration required due to mediastinal bleeding with or without tamponade, unplanned coronary artery intervention (native, vessel, graft, or both), valve dysfunction, aortic reintervention, or other cardiac reason. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G8577?
The CMS HCPCS file marks G8577 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is G8577 paid under the physician fee schedule?
G8577 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.