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Official Description

Thrombolysis, coronary; by intravenous infusion

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Coronary thrombolysis is a medical procedure aimed at dissolving blood clots that obstruct the coronary arteries, which supply blood to the heart muscle. The procedure can be performed through two primary methods: intracoronary infusion and intravenous infusion. The CPT® Code 92977 specifically refers to the intravenous infusion method. In this approach, a healthcare professional selects a vein, typically in the arm, and inserts a needle or an intracatheter to facilitate the administration of a thrombolytic agent. This agent, which may include medications such as streptokinase, alteplase, or reteplase, is injected into the bloodstream to aid in the dissolution of the clot located in the coronary artery. The goal of this procedure is to restore blood flow to the heart muscle, thereby minimizing damage and improving patient outcomes. It is essential for medical coders and billers to understand the nuances of this procedure, as accurate coding is critical for proper reimbursement and compliance with healthcare regulations.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure of coronary thrombolysis by intravenous infusion (CPT® Code 92977) is indicated for patients experiencing specific conditions related to coronary artery occlusion. These indications include:

  • Acute Myocardial Infarction - This is a critical condition where blood flow to a part of the heart is blocked, leading to damage to the heart muscle. Thrombolysis is performed to dissolve the clot and restore blood flow.
  • Coronary Artery Thrombosis - The presence of a thrombus (blood clot) in the coronary arteries can lead to ischemia and myocardial damage. Thrombolytic therapy is indicated to address this blockage.
  • Unstable Angina - In cases where unstable angina is suspected to be caused by a thrombus, thrombolysis may be indicated to prevent progression to a myocardial infarction.

2. Procedure

The procedure for intravenous thrombolysis (CPT® Code 92977) involves several critical steps to ensure effective treatment of the coronary artery occlusion. These steps include:

  • Step 1: Patient Preparation - The patient is assessed and prepared for the procedure, which includes obtaining informed consent and ensuring that the patient is stable for the infusion of thrombolytic agents.
  • Step 2: Venous Access - A suitable vein in the patient's arm is selected for access. A needle or an intracatheter is then inserted into the vein to facilitate the administration of the thrombolytic agent.
  • Step 3: Administration of Thrombolytic Agent - The thrombolytic agent is carefully injected into the intravenous line. This agent works systemically to dissolve the clot obstructing the coronary artery.
  • Step 4: Monitoring - Throughout the infusion, the patient is closely monitored for any adverse reactions to the thrombolytic agent and for signs of improvement in their condition.
  • Step 5: Post-Infusion Care - After the infusion is complete, the patient is monitored for recovery and any potential complications that may arise from the procedure.

3. Post-Procedure

Following the intravenous thrombolysis procedure (CPT® Code 92977), patients are typically monitored in a clinical setting for a specified period to assess their response to the treatment. This includes observing for any signs of bleeding, allergic reactions, or other complications associated with thrombolytic therapy. Patients may also undergo follow-up imaging studies, such as echocardiograms or angiography, to evaluate the effectiveness of the thrombolysis in restoring blood flow to the coronary arteries. The healthcare team will provide instructions for post-procedure care, which may include activity restrictions and medication management to ensure optimal recovery and prevent further cardiovascular events.

Short Descr DISSOLVE CLOT HEART VESSEL
Medium Descr THROMBOLYSIS CORONARY INTRAVENOUS INFUSION
Long Descr Thrombolysis, coronary; by intravenous infusion
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 5 - Incident To Code
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Procedure or Service, Multiple Reduction Applies
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P2F - Major procedure, cardiovascular-Other
MUE 1
CCS Clinical Classification 46 - Coronary thrombolysis
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
GC This service has been performed in part by a resident under the direction of a teaching physician
RT Right side (used to identify procedures performed on the right side of the body)
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
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Action
Notes
2013-01-01 Changed Guideline information changed.
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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