LOINC Code 81923-5: Tryptophan intake 24 hour Measured

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 Tryptophan intake. It is commonly used with the system or sample type ^Patient.

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: Measured

What it does not mean

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

Key facts

• Tryptophan intake 24 hour Measured
• Tryptophan intake
• The patient's measured tryptophan intake in 24 hours from all sources including food, beverages, and supplements, and via enteral and parenteral routes. This term was created for, but not limited in use to, the Academy of Nutrition and Dietetics' Nutrition Assessment Language.
• 1 day; 24 hours; 24HR; c244; Diet; Dietetics; L-tryptophan; Mass rate; mRate; Nutrition; Pellagra; QNT; Quan; Quant; Quantitative; Trp

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