All codes
L403
L403 – L403
OHIP Dermatology Code · Schedule of Benefits
When to Use
- Use L403 for the laboratory requisition of a complete blood count (CBC) when ordered as a standalone diagnostic test.
- Apply this code when requesting a routine hematology profile that does not qualify for more complex panel-specific laboratory codes.
Common Pitfalls
- Do not bill L403 in conjunction with a visit fee (e.g., A007) if the laboratory requisition is the sole purpose of the encounter, as the visit fee is intended for a full assessment.
- Avoid billing L403 multiple times for the same patient on the same day; it is a single-unit service regardless of the number of hematological parameters requested.
Billing Tips
- Ensure the laboratory requisition is clearly linked to the diagnostic code that justifies the medical necessity of the CBC to prevent rejection during manual audit.
Provider Fee$2.59
Effective: July 1, 2010
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