What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveOrder

LOINC Code 81913-6: Essential amino acid intake panel

Name: LOINC Code 81913-6: Essential amino acid intake panel
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:05.776Z

81913-6 is a LOINC code used to identify Essential amino acid intake panel 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 acid.essential intake panel. It is commonly used with the system or sample type ^Patient.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 acid.essential intake panel. 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: Order
Panel type: Panel

What it does not mean

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

Key facts

Essential amino acid intake panel

Amino acid.essential intake panel

This panel contains terms that capture the type and amount of essential amino acid intake from all sources including food, beverages, and supplements, and via enteral and parenteral routes. Essential amino acids cannot be made by the body and they must come from food. The 9 essential amino acids arehistidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. This term was created for, but not limited in use to, the Academy of Nutrition and Dietetics' Nutrition Assessment Language.

Acd; Acids; Amino acid essential intake; Amino acid essential intake Pnl; Diet; Dietetics; Nutrition; Pan; Panl; Pnl

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

Essential amino acid intake panelAmino acid essential intake PnlAmino acid.essential intake panelPANEL.NUTRITION&DIET-^Patient

Frequently asked questions

Code details

Code81913-6

SystemLOINC

Display nameEssential amino acid intake panel

DescriptionAmino acid.essential intake panel

Short nameAmino acid essential intake Pnl

ComponentAmino acid.essential intake panel

Property-

Timing-

System (specimen)^Patient

Scale-

ClassPANEL.NUTRITION&DIET

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.56

Part names

Amino acid.essential intake panel-^PatientEssential amino acid intake panel

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.