Summary & Overview

HCPCS G8489: Intent to Report Coronary Artery Disease Measures

HCPCS Level II code G8489 denotes an intent to report the coronary artery disease (CAD) measures group, signaling participation in quality measurement for CAD care. On a national scale, use of this code reflects provider engagement with performance reporting frameworks tied to cardiovascular outcomes, care coordination, and preventive management. Capturing intent to report is relevant for payers, health systems, and policymakers monitoring quality program participation and compliance.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of what G8489 represents, how it fits into CAD quality measurement workflows, and which payer programs are most likely to interact with this reporting intent. The publication covers typical benchmarks and reporting contexts, relevant policy or program updates affecting CAD measure reporting, and clinical context explaining why CAD measure groups are tracked.

This summary is intended for a national audience of billing professionals, quality officers, and policy analysts seeking concise information on the purpose and implications of HCPCS Level II code G8489 for coronary artery disease reporting. Data not available in the input for specific modifiers, associated taxonomies, ICD-10 codes, related codes, and detailed service-line mappings are noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG8489HCPCS Level IIcoronary artery diseasequality reportingperformance measuresoutpatient cardiologyclinical documentationbilling

Billing Code Overview

HCPCS Level II code G8489 is reported to indicate an intention to submit or report the coronary artery disease (CAD) measures group. This code represents a quality-reporting intent related to performance measurement for patients with coronary artery disease.

Service Type: Quality measurement / reporting intent

Typical Site of Service: Outpatient clinics and ambulatory care settings where CAD care is managed and quality reporting is performed

Data not available in the input for modifiers, associated taxonomies, ICD-10 diagnoses, related codes, and service line.

Clinical & Coding Specifications

Clinical Context

A 68-year-old patient with known coronary artery disease (CAD) attends an outpatient cardiology practice for quality reporting and registry submission related to CAD performance measures. The patient has a history of stable angina, prior percutaneous coronary intervention (PCI) two years ago, hypertension, hyperlipidemia, and is on aspirin and a statin. During the visit the cardiologist reviews current medications, documents smoking status and counseling, confirms blood pressure and lipid control, and records recent HbA1c for diabetes screening if applicable. The clinician completes the CAD measures group attestation to satisfy quality reporting requirements and generate the G8489 HCPCS Level II claim for reporting the intent to report the CAD measures group. Typical workflow steps include: pre-visit chart review for eligibility, office visit with focused cardiovascular history and medication reconciliation, measurement and documentation of vitals and laboratory results, counseling as appropriate, and submission of the quality reporting code G8489 with the visit claim to indicate participation in CAD measure reporting.

Coding Specifications

Modifier	Description	When to Use
`25`	Significant, separately identifiable evaluation and management service on the same day of a procedure	Use when an E/M visit is distinct from the reporting activity and meets E/M documentation standards on the same day as `G8489` reporting.
`59`	Distinct procedural service	Use when another procedure or service on the same day is separate and not ordinarily reported together with the CAD reporting activity.
`24`	Unrelated E/M service by the same physician during a postoperative period	Use if an unrelated E/M visit occurs during a global period while CAD measures reporting is billed.
`GA`	Waiver of liability statement on file (Medicare)	Use when the provider has an Advance Beneficiary Notice related to coverage for measure-reporting services if applicable.
`GZ`	Item or service expected to be denied as not reasonable and necessary (no ABN on file)	Use to indicate the service is expected to be noncovered when appropriate payor rules apply.
`GP`	Services performed under an outpatient physical therapy plan of care	Use if a related cardiac rehabilitation therapy visit is billed by therapy providers on the same date as CAD measure reporting.
`KX`	Requirements specified in the medical policy have been met	Use when documentation supports medical necessity or specific policy criteria required by the payer for related services.
`26`	Professional component	Use when reporting only the professional component of a related diagnostic service (e.g., interpretation) on the same day as CAD reporting.
`TC`	Technical component	Use when reporting only the technical component of a related diagnostic service alongside CAD measure reporting.
`LT`	Left side modifier	Use for procedures or services that are side-specific, when relevant to concurrent services.

Taxonomy Code	Specialty	Notes
`207RC0000X`	Cardiology	Physicians who manage CAD patients and complete measure reporting.
`207RP1001X`	Interventional Cardiology	Specialists who perform PCI and follow longitudinal CAD care; may participate in measure reporting.
`207RI0010X`	Internal Medicine - Cardiology	General internists with cardiology focus managing chronic CAD and quality reporting.
`171W00000X`	Nurse Practitioner	Advanced practice providers who document care and submit quality measures for CAD.
`163WL0500X`	Clinical Nurse Specialist	Nurses involved in cardiovascular care coordination and documentation for measure reporting.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I25.10`	Atherosclerotic heart disease of native coronary artery without angina pectoris	Common diagnosis for patients enrolled in CAD measure reporting and ambulatory follow-up.
`I25.110`	Atherosclerotic heart disease of native coronary artery with unstable angina pectoris	Relevant for CAD patients with recent unstable symptoms; influences measure elements such as medication reconciliation.
`I20.9`	Angina pectoris, unspecified	Symptom diagnosis frequently documented during CAD visits and included in quality measure considerations.
`E78.5`	Hyperlipidemia, unspecified	Major comorbidity tracked in CAD measures focusing on lipid management and statin use.
`I10`	Essential (primary) hypertension	Hypertension is a common comorbidity affecting CAD management and quality metrics.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes	Common E/M visit level used when documenting CAD management and completing measure reporting tied to `G8489`.
`93000`	Electrocardiogram, routine ECG with at least 12 leads; with interpretation and report	Performed frequently during CAD visits to evaluate current cardiac status; results documented as part of measure reporting.
`93306`	Echocardiography, transthoracic, real-time with image documentation (2D), complete, with spectral and color Doppler	Used to assess cardiac function in CAD patients and may be documented in the medical record supporting quality measures.
`92928`	Percutaneous transcatheter placement of intracoronary stent(s), with coronary angioplasty when performed; single major coronary artery or branch	Relevant in the longitudinal care of CAD patients; prior procedures are documented when reporting CAD measures.
`99406`	Smoking and tobacco use cessation counseling, intermediate, greater than 3 minutes up to 10 minutes	Counseling commonly provided for CAD patients and documented for quality measures; may be billed alongside CAD reporting when applicable.