FT4T4 – “T4, Free Dial and T4, Total” replaced by T4FDT – “T4, Free, Direct Dialysis and T4, Total”

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Inactivated/Replace Test

Effective Date

03/18/2024

Included in Report

WML Test Directory Update | March 2024

Replacement Test

T4, FREE, DIRECT DIALYSIS and T4, TOTAL

Inactivated Test Details

Mnemonic

FT4T4

Ordering Code

3510197

CPT-4 Codes(s)

84439, 84436

Replacement Test Details

Mnemonic

T4FDT

Ordering Code

3400847

CPT-4 Codes(s)

84439, 84436

The CPT codes provided are for general informational purposes only and are based on an interpretation of AMA guidance. It is the sole responsibility of the billing party to determine CPT codes. Any questions regarding coding should be directed to the paying party.

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