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Pathology/Lab Coding Alert

Path/Lab Coding:

Understand How and When to Account for Different Differential WBC Counts

Published on Mon Sep 28, 2026

Question: Can you bill lab codes 85025 and 85027 at the same time? Can they be separate tests if they have separate diagnoses attached to them? If you can bill them  together, do they need a 59 modifier? Or is the 85027 service always included in 85025? Also, If the provider's notes do not specifically state “differential WBC,” then would [...]
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