Data Last Updated: June 9, 2025

NAACCR Item #1174: PD-L1

Item # Length Source of Standard Section Name Year Implemented Version Implemented XML NAACCR ID Parent XML Element
1174 5 NAACCR Stage/Prognostic Factors 2025 25 pdl1 Tumor
Required Status:

NPCR Collect: Required, site specific; when available
CoC Collect: Required, site specific
SEER Collect: Required, site specific
CCCR Collect: Required, site specific; when available

Description
The absence or presence of PD-L1 expression determines if the tumor will respond to treatment with a targeted inhibitor (immunotherapy). PD-L1 is done for Non-small cell lung cancers (NSCLC).
Rationale
PD-L1 is recommended by treatment guidelines for lung cancer to determine if the patient may benefit from checkpoint inhibitor drugs (immunotherapy). It is a new data item for cases diagnosed 1/1/2025+.
Allowable Values
0.0, 0.1-100.0, XXX.2, XXX.3, XXX.4, XXX.7, XXX.8, XXX.9
Codes
Code Description
0.0 No PD-L1 expression identified Tumor Proportion Score (TPS) = 0%
0.1-100.0 0.1-100.0 PD-L1 expression Tumor Proportion Score (TPS) = 0.1%-100.0%
XXX.2 PD-L1 expression absent AND Tumor Proportion Score (TPS) stated as negative
XXX.3 PD-L1 expression present AND Tumor Proportion Score (TPS) stated as low
XXX.4 PD-L1 expression present AND Tumor Proportion Score (TPS) stated as high/positive
XXX.7 Test ordered, results not in chart
XXX.8 Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 8 will result in an edit error)
XXX.9 Not documented in medical record No microscopic confirmation of tumor PD-L1 cannot be determined PD-L1 not assessed or unknown if assessed
Blank NA - Diagnosis year is prior to 2025
Code Notes
**Note 1:** This SSDI is effective for diagnosis years 2025+.  * For cases diagnosed 2018-2024, leave this SSDI blank **Note 2:** Physician statement PD-L1 can be used to code this data item when no other information is available. **Note 3:** The absence or presence of PD-L1 expression determines if the tumor will respond to treatment with a targeted inhibitor. PDL-1 is done for Non-Small Cell lung cancers (NSCLC) **Note 4:** If neoadjuvant therapy is given, record the assay from tumor specimens prior to neoadjuvant therapy.  * If neoadjuvant therapy is given and there are no PD-L1 results from pre-treatment specimens, report the findings from post-treatment specimens