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G556
G556 – ICU/NICU admission assessment
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
When to Use
- Use G556 when performing an initial ICU admission assessment for a patient between 00:00 and 07:00 in conjunction with a base assessment code like G557.
- Apply this code when a patient is transferred to the ICU during the night shift and you are the physician conducting the comprehensive initial admission evaluation.
Common Pitfalls
- Billing G556 without an eligible base code (G400, G405, G557, G600, G603, G604, G610, or G620) will result in an automatic rejection.
- Submitting G556 for assessments performed outside the 00:00-07:00 window is a common audit trigger for improper premium claims.
Billing Tips
- Ensure your documentation clearly records the exact time of the assessment to justify the night-time premium claim.
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