LOINC Code 105303-2: Tumor cells+Macrophages+Lymphocytes.Programmed cell death ligand 1/Viable tumor cells Immune stain (Tiss) [Ratio]

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Tumor cells+Macrophages+Lymphocytes.Programmed cell death ligand 1/Viable tumor cells. It is commonly used with the system or sample type Tiss.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Observation
• Method: Immune stain

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Tumor cells+Macrophages+Lymphocytes.Programmed cell death ligand 1/Viable tumor cells [Ratio] in Tissue by Immune stain
• Tumor cells+Macrophages+Lymphocytes.Programmed cell death ligand 1/Viable tumor cells
• This term represents a measurement of PD-L1 expression, calculated as the number of PD-L1 staining cells (tumor cells, lymphocytes, macrophages) divided by the total number of viable tumor cells, multiplied by 100.
• B7 homolog 1; B7-H1; CD274; Cell; Cellularity; Cluster of differentiation 274; i; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Lymp; Lymph; Lympho; Lymphocyte; Lymphs; Lymphs%; Macrop; Macrophage; Macros; Macrphg; Pathology; PDL1; PD-L1; Point in time; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto; St; Stains; Stn; TC; TC+Macrophages+Lymphocytes PD-L1; Tissue; Tissue, unspecified; Viab tum

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions