Clinical Context
A 64-year-old male with a history of hypertension, hyperlipidemia, and type 2 diabetes presents to the emergency department with 90 minutes of severe chest pressure, diaphoresis, and ST-elevation on ECG consistent with an acute anterior STEMI. He is taken emergently to the cardiac catheterization laboratory. The interventional cardiology team obtains femoral arterial access, performs diagnostic coronary angiography, identifies a high-grade focal stenosis of the left anterior descending artery, and proceeds with percutaneous transluminal coronary angioplasty using a balloon catheter to dilate the lesion. The procedure is coded as 92920 for angioplasty of a single major coronary artery and/or its branches.
Clinical workflow:
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Initial evaluation in ED with ECG, cardiac biomarkers, and activation of cath lab.
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Consent obtained for percutaneous coronary intervention (PCI) including angioplasty with possible stent placement; documentation includes indication (I21.02) and procedural risks.
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In the cath lab, arterial access, administration of anticoagulation/antiplatelet agents, diagnostic coronary angiography, and decision to perform balloon angioplasty.
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Completion of angioplasty with hemodynamic and angiographic assessment for residual stenosis; adjunctive devices or stent placement may be performed and billed separately if used.
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Post-procedure monitoring in a cardiac recovery unit or intensive care setting; discharge planning and secondary prevention medication reconciliation.
Coding Specifications
| Modifier | Description | When to Use |
|---|
00 | No modifier (default) | Use as the primary claim indicator when no specific modifier applies. |
22 | Increased procedural services | Use when work or complexity substantially exceeds typical services and documentation supports increased effort.
52 | Reduced services | Use when the angioplasty is partially reduced or not completed as originally planned.
53 | Discontinued procedure | Use when the procedure is terminated due to patient instability or other acute intra-procedural complication.
59 | Distinct procedural service | Use to indicate a separate and distinct procedure or artery when bundling edits might apply.
62 | Two surgeons | Use when more than one physician from different groups shares active surgical management during the procedure (rare in PCI).
76 | Repeat procedure by same physician | Use when the same physician repeats the angioplasty during the same encounter.
78 | Unplanned return to the operating/procedural room by the same physician following initial procedure for a related procedure during the postoperative period | Use if the patient requires return to the cath lab for a complication related to the initial angioplasty.
80 | Assistant surgeon present | Use when a surgical assistant is documented (uncommon for standard PCI but applicable in hybrid or surgical-assisted cases).
RT | Right side | Use when laterality reporting is applicable (rare for coronary procedures but included in modifier list).
LC | Left side | Use when laterality reporting is applicable (rare for coronary procedures but included in modifier list).
AS | Physician assistant, nurse practitioner, or clinical nurse specialist services for Medicare beneficiaries | Use to indicate services performed by an auxiliary practitioner under appropriate supervision when applicable.
QX | CRNA service with medical direction by a physician | Use when a certified registered nurse anesthetist provides anesthesia under medical direction.
CR | Catastrophic/critical care related modifier (facility-specific) | Use if local payer requires identification of care delivered for catastrophic events (verify payer rules).
XE | Separate encounter | Use to indicate services that are distinct by encounter when modifier 59 is not appropriate.
| Taxonomy Code | Specialty | Notes |
|---|
207RC0000X | Cardiovascular Disease Physician | General cardiologists performing diagnostic angiography and coordinating PCI care. |
207RI0011X | Interventional Cardiology Physician | Specialists who perform percutaneous coronary interventions including 92920.
207RG0300X | Geriatric Medicine Physician | May be involved in pre- or post-procedure management of older adults undergoing PCI.
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|
I20.0 | Unstable angina | Indication for urgent coronary angiography and possible balloon angioplasty to restore perfusion and relieve ischemia. |
I20.1 | Angina pectoris with documented spasm | Balloon angioplasty may be used if fixed stenosis is identified in addition to vasospasm management.
I20.81 | Angina pectoris with coronary microvascular dysfunction | Generally managed medically; angioplasty considered if epicardial stenosis is also present.
I20.89 | Other forms of angina pectoris | Includes atypical angina presentations where angioplasty may be indicated after angiographic correlation.
I20.9 | Angina pectoris, unspecified | Used when angina is the presenting symptom and angioplasty is performed for an identified culprit lesion.
I21.01 | ST elevation (STEMI) myocardial infarction involving left main coronary artery | STEMI indication often mandates emergent angioplasty to revascularize the infarct-related artery.
I21.02 | ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery | Common infarct-related artery for which emergent 92920 angioplasty is performed.
I21.09 | ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall | Indicates anterior STEMI where angioplasty targets the culprit vessel.
I21.11 | ST elevation (STEMI) myocardial infarction involving right coronary artery | Inferior STEMI where angioplasty may be performed on the right coronary artery.
I21.19 | ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall | Similar clinical relevance for inferior wall infarction.
I21.21 | ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery | Angioplasty indicated when left circumflex is the infarct-related artery.
I21.29 | ST elevation (STEMI) myocardial infarction involving other sites | Other anatomic sites requiring angioplasty depending on angiographic findings.
I21.3 | ST elevation (STEMI) myocardial infarction of unspecified site | Use when site unspecified and angioplasty performed for STEMI management.
I21.4 | Non‑ST elevation (NSTEMI) myocardial infarction | NSTEMI may prompt early invasive strategy including angioplasty for culprit lesions.
I21.9 | Acute myocardial infarction, unspecified | General code for AMI when specific site is not documented; may be associated with angioplasty.
I21.A1 | Myocardial infarction type 2 | Type 2 MI due to supply-demand mismatch; angioplasty is performed only if concurrent obstructive coronary disease is identified.
I21.A9 | Other myocardial infarction type | Miscellaneous MI types where angioplasty may be considered based on coronary anatomy.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
92924 | Percutaneous transluminal coronary atherectomy, with coronary angioplasty when performed, single major coronary artery and/or its branch(es) | Performed when plaque debulking is required in addition to balloon angioplasty; may be billed when atherectomy is performed with angioplasty. |
92928 | Percutaneous transcatheter placement of intracoronary stent(s), with coronary angioplasty when performed, single major coronary artery and/or its branch(es) | Commonly performed immediately following 92920 if balloon angioplasty results necessitate stent placement; stent placement is billed with this code.