LOINCActive

LOINC Code 31205-8: Histology ICD-O-3 Cancer

31205-8 is a LOINC code used to identify Histology ICD-O-3 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 Histology ICD-O-3. It is commonly used with the system or sample type Cancer.XXX.

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 Histology ICD-O-3. It is commonly used with the system or sample type Cancer.XXX.

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

Histology ICD-O-3 Cancer
Histology ICD-O-3
Codes for the histologic type of the tumor being reported using ICD-O-3. NAACCR adopted ICD-O-3 as the standard coding system for tumors diagnosed in 2001 and later, and recommended that prior tumors be converted from ICD-O-2. NoteSee Histology (92-00) ICD-O-2 [420] for ICD-O-2 codes... NAACCR Data Standards and Data Dictionary Version 11
CA; Identity or presence; III; International Classification of Diseases; International Classification of Diseases for Oncology; Misc; Miscellaneous; Nominal; Oncology; Other; Point in time; Random; Spec; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); Unspecified

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

Histology ICD-O-3 CancerHistology ICD-O-3TUMRRGTPridPtCancer.XXXNom

Frequently asked questions

Code details

Code31205-8
SystemLOINC
Display nameHistology ICD-O-3 Cancer
DescriptionHistology ICD-O-3
Short nameHistology ICD-O-3 Cancer
ComponentHistology ICD-O-3
PropertyPrid
TimingPt
System (specimen)Cancer.XXX
ScaleNom
ClassTUMRRGT
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.27

Part names

Histology ICD-O-3PridPtCancer.XXXNomPresence or IdentityPoint in time (spot)Cancer XXX

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 31205-8 | HealthAssure