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.

LOINCActiveObservation

LOINC Code 19791-3: Insertion depth Gastrointestinal tract upper EGD

Name: LOINC Code 19791-3: Insertion depth Gastrointestinal tract upper EGD
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:28.198Z

19791-3 is a LOINC code used to identify Insertion depth Gastrointestinal tract upper EGD 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 Insertion depth. It is commonly used with the system or sample type Gastrointestinal tract.upper.

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 Insertion depth. It is commonly used with the system or sample type Gastrointestinal tract.upper.

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: EGD

What it does not mean

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

Key facts

Insertion depth Gastrointestinal tract upper EGD
Insertion depth
Distance from incision
Dpth; Endoscopy; Esophagogastro duodenoscopy; Esophagogastroduodenoscopy; Gastro; Gastroenterology; GI; GI.ENDO; Insert depth; insertions; Length; QNT; Quan; Quant; Quantitative; Studies; Study; Sutdies; UGI; Up

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

Insertion depth Gastrointestinal tract upper EGDInsert depth UGI EGDInsertion depthENDO.GILenStdyGastrointestinal tract.upper

Frequently asked questions

Code details

Code19791-3

SystemLOINC

Display nameInsertion depth Gastrointestinal tract upper EGD

DescriptionInsertion depth

Short nameInsert depth UGI EGD

ComponentInsertion depth

PropertyLen

TimingStdy

System (specimen)Gastrointestinal tract.upper

ScaleQn

MethodEGD

ClassENDO.GI

Example unitscm

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.56

Part names

Insertion depthLenStdyGastrointestinal tract.upperQnEGDLengthStudyGastrointestinal tract upperEsophagogastro duodenoscopy (EGD)

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.