LOINC Code 74991-1: Amino acids panel (U) [Molar ratio]
74991-1 is a LOINC code used to identify Amino acids panel (U) [Molar ratio] 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 Amino acids panel. It is commonly used with the system or sample type Urine.
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 Amino acids panel. It is commonly used with the system or sample type Urine.
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
- Amino acids panel [Molar ratio] - Urine
- Amino acids panel
- Amino acids are tested for diagnosis of congenital disorders of amino acid metabolism.
- AA; Acd; Acid; Amino acid; Amino acids Pnl; Amino acids.total; Chemistry; Pan; PANEL.CHEMISTRY; Panl; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; Scrto; Substance concentration ratio; Substance ratio; UA; UR; Urn
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.