Billing Code Overview

HCPCS Level II code G0404 represents a routine 12-lead electrocardiogram performed as a screening during the initial preventive physical examination. The service is described as a tracing only, without interpretation and report, and falls under Preventive Medicine services. The typical site of service is the office (POS 11).

Clinical Context

A 67-year-old patient presents to the primary care office (POS 11) for an Initial Preventive Physical Examination (IPPE) or other preventive visit. As part of the screening portion of the visit, a routine 12-lead electrocardiogram is performed to obtain the cardiac tracing only, without onsite interpretation or a formal report. The tracing is captured by clinic staff or a cardiac technician and transmitted or stored for later review. The encounter may be associated with preventive screening diagnoses such as Z00.00, Z00.01, or Z13.6, or with findings that prompt follow-up such as R94.31 or management of chronic conditions like I10.

Clinical workflow: patient check-in → brief history and vitals → indication documented for screening ECG → ECG tracing obtained (12-lead) → tracing labeled and attached to the patient record or sent to cardiology for interpretation → billing uses the HCPCS Level II code G0404 to report the tracing-only screening ECG performed during the IPPE visit.

Coding Specifications

Modifier usage and meanings:

• 26 — Professional Component

• TC — Technical Component

Associated provider taxonomies and specialties:

Related Diagnoses

• Z00.00 — Encounter for general adult medical examination without abnormal findings

  Clinical relevance: used when a preventive screening ECG is performed during a routine adult preventive exam with no abnormal findings.

• Z00.01 — Encounter for general adult medical examination with abnormal findings

  Clinical relevance: used when the preventive exam yields abnormal findings that may include abnormal cardiac screening results prompting further evaluation.

• Z13.6 — Encounter for screening for cardiovascular disorders

  Clinical relevance: directly supports a screening ECG performed for cardiovascular risk assessment during a preventive visit.

• R94.31 — Abnormal electrocardiogram [ECG] [EKG]

  Clinical relevance: documents an abnormal tracing result that may be identified on the ECG tracing obtained; often prompts interpretation, follow-up diagnostic testing, or referral.

• I10 — Essential (primary) hypertension

  Clinical relevance: a common chronic condition for which clinicians may perform screening ECGs to assess cardiac effects or baseline conduction prior to treatment changes.

Related Codes

Clinical relationship to HCPCS Level II code G0404:

• G0402 is the IPPE visit code during which a screening ECG like G0404 may be performed.

• G0403 is the screening ECG performed with interpretation and report and is an alternative to G0404 when interpretation is included at the time of service.

• G0405 is closely related as another tracing-only ECG code; it represents a tracing without interpretation in contexts outside the IPPE screening designation.

• 93000 is a standard ECG code that includes interpretation and report and serves as an alternative when interpretation is billed together with the technical and professional components. These codes are commonly used together or as alternatives based on whether interpretation/reporting is provided and the visit context.

National mean rates for HCPCS Level II code G0404 show Medicare ($7.32) below the BUCA average commercial mean ($10.32). UnitedHealthcare posts the highest national mean at $14.17, while Cigna Health has the lowest mean at $6.76.

Rate dispersion (P75 minus P25) is tightest for Cigna Health (0), followed by Medicare (1) and Aetna (3). The widest dispersion is with UnitedHealthcare (8.0) and Blue Cross Blue Shield (6.17), indicating larger variability in contracted rates. The table and chart below present the full breakdown.