All codes
L838
L838 – Leukocyte Phenotyping by Monoclonal Antibody Technique
OHIP Dermatology Code — Laboratory Medicine · Schedule of Benefits
L838 is a laboratory medicine procedure for leukocyte phenotyping performed by monoclonal antibody technique. This service falls under the sub-specialty of Haematopathology. As per the General Preamble, this diagnostic procedure can be referred by a physician or a nurse practitioner ().
When to Use
- Use L838 when performing immunophenotyping via flow cytometry to characterize lymphoproliferative disorders or acute leukemias.
- Select this code for monoclonal antibody-based analysis of peripheral blood or bone marrow samples when specifically identifying cell surface markers like CD markers.
Common Pitfalls
- Do not bill L838 in conjunction with other flow cytometry codes if the laboratory procedure is bundled under a single comprehensive analysis fee.
- Avoid billing L838 for routine complete blood counts (CBC) or basic leukocyte differentials, which are covered under standard hematology laboratory codes.
Billing Tips
- Ensure the requisition clearly specifies the monoclonal antibody technique to justify the use of L838 over standard morphological examination codes.
Provider Fee$19.80
Specialist Fee$0.00
Surgical Assistant Fee$0.00
Anaesthetist Fee$0.00
Non-Anaesthetist Fee$0.00
Effective: April 1, 2025
Category
Diagnostic and Therapeutic Procedures
Subcategory
Laboratory Medicine
Service Type
Laboratory
Code Classes
Diagnostic and Therapeutic Procedures
Referral RequiredFrom: Physician, NursePractitioner
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