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Ask a Rev Cycle Expert: Laboratory Date of Service Reporting?

Question:

Regarding the date of service for lab tests that are sent out for processing, what is the date of service we should be reporting? Is it the date the lab specimen is collected, or is it the date the lab test results are completed?

Answer:

For laboratory specimens, the date of service is the date the specimen was collected. When the period spans two calendar days, then the date of service (DOS) is the date the collection ended. There are exceptions for stored specimens, advanced diagnostic laboratory tests and molecular pathology tests.

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