LOINCActiveObservation

LOINC Code 33725-3: Tumor site Nom (Spec)

33725-3 is a LOINC code used to identify Tumor site Nom (Spec) 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 Specimen.

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 Specimen.

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
  • The site in the body where the tumor is located. For example, in colorectal cancers, the tumor sites include the cecum, ascending or descending colon, hepatic flexure, splenic flexure, or rectum.
  • Anatomy; Nominal; Pathology; PATHOLOGY PROTOCOLS; PATHOLOGY PROTOCOLS general; Point in time; Random; Spec

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 Nom (Spec)Tumor sitePATH.PROTOCOLS.GENERTumor site, SpecimenAnatPtSpecimen

Frequently asked questions

Code details

Code33725-3
SystemLOINC
Display nameTumor site Nom (Spec)
DescriptionTumor site
Short nameTumor site
ComponentTumor site
PropertyAnat
TimingPt
System (specimen)Specimen
ScaleNom
ClassPATH.PROTOCOLS.GENER
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.73

Consumer names

Tumor site, Specimen

Part names

Tumor siteAnatPtSpecimenNomAnatomyPoint 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 33725-3 | HealthAssure