LOINCActiveObservation

LOINC Code 81662-9: Percentage of meal eaten

81662-9 is a LOINC code used to identify Percentage of meal eaten 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 Meal eaten. 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 Meal eaten. 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

What it does not mean

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

Key facts

  • Percentage of meal eaten
  • Meal eaten
  • The percentage of the meal eaten by the patient.
  • %; Diet; Dietetics; Nutrition; Point in time; QNT; Quan; Quant; Quantitative; Random

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

Percentage of meal eatenMeal eaten %Meal eatenNUTRITION&DIETETICSAFrPt^Patient

Frequently asked questions

Code details

Code81662-9
SystemLOINC
Display namePercentage of meal eaten
DescriptionMeal eaten
Short nameMeal eaten %
ComponentMeal eaten
PropertyAFr
TimingPt
System (specimen)^Patient
ScaleQn
ClassNUTRITION&DIETETICS
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.56

Part names

Meal eatenAFrPt^PatientQnArbitrary fractionPoint in time (spot)

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.