LOINC Code 106940-0: Tau protein.phosphorylated 217/Tau protein.unphosphorylated 217 LC/MS/MS (P) [Mass 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 Tau protein.phosphorylated 217/Tau protein.unphosphorylated 217. It is commonly used with the system or sample type Plas.

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: LC/MS/MS

What it does not mean

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

Key facts

• Tau protein.phosphorylated 217/Tau protein.unphosphorylated 217 [Mass Ratio] in Plasma by LC/MS/MS
• Tau protein.phosphorylated 217/Tau protein.unphosphorylated 217
• Alzheimer disease; Alzheimer's disease; Chemistry; Mass concentration ratio; Mass ratio; MCRto; np-tau217; Pl; Plasma; Plsm; Point in time; PR; Prot; p-tau217; p-tau217/np-tau217; QNT; Quan; Quant; Quantitative; Random; T217; u-Tau217

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