G296 – Dye dilution densitometry and/or thermal dilution studies
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
Dye dilution densitometry and/or thermal dilution studies. According to , the benefit for G296 covers all studies performed on the same day in a cardiac catheterization lab. It is listed under 'HAEMODYNAMIC/FLOW/METABOLIC STUDIES' within the Cardiac Catheterization section.
When to Use
- Use G296 when performing thermal dilution cardiac output measurements during a diagnostic cardiac catheterization procedure.
- Use this code for dye dilution densitometry studies performed to assess hemodynamic flow parameters in the cardiac catheterization lab.
Common Pitfalls
- Billing G296 in addition to other cardiac catheterization codes (Z439-G288) without applying the 50% reduction rule for multiple procedures at one sitting.
- Attempting to bill G296 multiple times for the same patient on the same day, as the benefit is explicitly defined as covering all studies performed in the cath lab that day.
Billing Tips
- Ensure that when G296 is billed alongside other procedures in the Z439-G288 range, the secondary procedure is submitted at 50% of the listed benefit to avoid automatic rejection or audit recovery.
Effective: April 1, 2025
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Diagnostic
Diagnostic and Therapeutic Procedures
All insured services must be documented in appropriate records that establish: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
1. Cardiac catheterization procedures (`Z439` to G288) include insertion of catheter (including cutdown and repair of vessels if rendered), catheter placement, contrast injection, imaging and interpretation.
2. When more than one procedure is carried out at one sitting, the additional procedures are payable at 50% of the listed benefits. (`Z439` to G288, excluding G262 and G263).
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