All codes
L639
L639 – L639
OHIP Dermatology Code · Schedule of Benefits
When to Use
- Use L639 for the laboratory requisition of a complete blood count (CBC) when performed as a standalone service or in conjunction with a consultation.
- Bill L639 when ordering a CBC for routine monitoring of chronic conditions like anemia or during medication titration where a full blood count is clinically indicated.
Common Pitfalls
- Do not bill L639 if the CBC is performed as part of a comprehensive laboratory panel that is already bundled under a different requisition code.
- Avoid billing L639 on the same day as a general assessment code if the laboratory work is considered part of the global fee for that visit type.
Billing Tips
- Ensure the laboratory requisition is clearly linked to the diagnostic code that justifies the CBC to avoid automated rejections for lack of medical necessity.
Provider Fee$7.25
Effective: April 1, 2018
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