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Official Description

Documentation of medical reason(s) for not performing the pd-l1 biomarker expression test prior to initiation of first-line immune checkpoint inhibitor therapy (e.g., patient is in an urgent or emergent situation where delay of treatment would jeopardize the patient's health status; other medical reasons/contraindication)
Short Descr Med rsn no pdl1 bef 1st ther
Coverage Carrier Priced
Pricing Indicator(s) 00 – Service not separately priced by part B (e.G., services not covered, bundled, used by part a only, etc.)
MPI 9 – Not applicable, as HCPCS not priced separately by part B (pricing indicator is 00) or value is not established (pricing indicator is '99')
BETOS Z2 – Undefined codes
TOS Code(s) 1 – Medical care
Added Date 1/1/2025
Action Code A – Add procedure or modifier code (effective 1/1/2025)
Status Code Measurement Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 9 - Not Applicable
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Items and Services Not Billable to the MAC
MUE Not applicable/unspecified.
MUE Not applicable/unspecified.
OTS Orthotic No
Date
Action
Notes
2026-01-01 Added First appearance of addition in codebook.
2025-01-01 Added Code added.