Laboratory Question for the Week of April 5, 2021

Laboratory Compliance Question of the Week


Can you tell me more about when the Z-code is not required?


Z – as in zebra – Z-codes are unique identifiers that capture specific information and reports to a Medicare payer what laboratory did the testing and exactly which test was performed. The Z-code is not required for hospitals in non-MolDX states, they are not required for inpatient claims and are not required for payers other than Medicare – but – you may see the MGD Medicare or Medicare Advantage payers request a Z-code be added to the claim when billing for outpatient procedures.

Disclaimer: Every reasonable effort was made to ensure the accuracy of this information at the time it was published. However, due to the nature of industry changes over time we cannot guarantee its validity after the year it was published.