LOINCActiveObservation

LOINC Code 81188-5: Tumor site of Stomach cancer

81188-5 is a LOINC code used to identify Tumor site of Stomach cancer 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 Tumor site. It is commonly used with the system or sample type Stomach cancer.

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 Tumor site. It is commonly used with the system or sample type Stomach cancer.

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

Tumor site of Stomach cancer
Tumor site
The gastric cancer tumor site location recorded as proximal , middle , and/or distal third of the stomach. True gastric proximal (cardia) tumors are rare; most involve the esophagogastric junction and should therefore be staged using the esophageal cancer staging system versus the gastric cancer staging system.[PMID20369299]
Anatomy; CA; CLIN; Gastric cancer; Gastric Cancers; Nominal; Point in time; 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

Tumor site of Stomach cancerTumor site Stomach cancerTumor siteCLINAnatPtStomach cancer

Frequently asked questions

Code details

Code81188-5
SystemLOINC
Display nameTumor site of Stomach cancer
DescriptionTumor site
Short nameTumor site Stomach cancer
ComponentTumor site
PropertyAnat
TimingPt
System (specimen)Stomach cancer
ScaleNom
ClassCLIN
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Tumor siteAnatPtStomach cancerNomAnatomyPoint 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.