LOINC Code 81938-3: Tyrosine intake 24 hour Estimated
81938-3 is a LOINC code used to identify Tyrosine intake 24 hour Estimated in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Tyrosine intake. It is commonly used with the system or sample type ^Patient.
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 Tyrosine 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: Estimated
What it does not mean
- The code identifies the observation or test, not the actual result.
Key facts
- Tyrosine intake 24 hour Estimated
- Tyrosine intake
- The patient's estimated 24 hour tyrosine intake 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; 4-hydroxyphenylalanine; Alkaptonuria; Diet; Dietetics; Est; estimation; Mass rate; mRate; Nutrition; Phenylketonuria; PKU; QNT; Quan; Quant; Quantitative; Tyr
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
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.