LOINCActive

LOINC Code 9155-3: Fluid output gastric tube [Appearance]

9155-3 is a LOINC code used to identify Fluid output gastric tube [Appearance] 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 Fluid output.gastric tube. It is commonly used with the system or sample type Upper GI tract.

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 Fluid output.gastric tube. It is commonly used with the system or sample type Upper GI tract.

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

What it does not mean

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

Key facts

  • Fluid output gastric tube [Appearance]
  • Fluid output.gastric tube
  • Appearance; Fld; Fluid output G-tube; gastrostomy tube; G-tube; IO_OUTPUT; IO_OUTPUT.MOLEC; Nominal; PEG; percutaneous endoscopic gastrostomy; Point in time; Random; UGI; Up; Upr GI Tract

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

Fluid output gastric tube [Appearance]Fluid output G-tubeFluid output.gastric tubeIO_OUT.MOLECAperPtUpper GI tract

Frequently asked questions

Code details

Code9155-3
SystemLOINC
Display nameFluid output gastric tube [Appearance]
DescriptionFluid output.gastric tube
Short nameFluid output G-tube
ComponentFluid output.gastric tube
PropertyAper
TimingPt
System (specimen)Upper GI tract
ScaleNom
ClassIO_OUT.MOLEC
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.27

Part names

Fluid output.gastric tubeAperPtUpper GI tractNomFluid output gastric tubeAppearancePoint 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.

LOINC Code 9155-3 | HealthAssure