LOINC Code 81630-6: Methotrexate polyglutamates 1-5 and total panel (RBC)

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 Methotrexate polyglutamates 1-5 & total panel. It is commonly used with the system or sample type RBC.

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: Order
• Panel type: Panel

What it does not mean

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

Key facts

• Methotrexate polyglutamates 1-5 and total panel - Red Blood Cells
• Methotrexate polyglutamates 1-5 & total panel
• The methotrexate polyglutamates (MTX-PGs) panel contains measurement results for total MTX-PGs and each individual polyglutamate (PG1-5) in red blood cells. Results are used to guide treatment planning for methotrexate and evaluation for various diseases, including rheumatoid arthritis.
• Amethoperin; Amethopterin; DRUG/TOXICOLOGY; Drugs; Erythrocytes; i; Methotrexat; Methotrexate polyglutamates; MTX; MTXpg; MTXpgs; MTX-PGs; MTX-PGs 1-5 + Total Pnl; Pan; PANEL.DRUG & TOXICOLOGY; Panl; Pnl; Point in time; RA; Random; Red blood cells; Red blood corpusles; Rheumatoid arthritis; Tot; Totl

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