LOINCActive

LOINC Code 42080-2: Extension collaborative staging Cancer

42080-2 is a LOINC code used to identify Extension collaborative staging 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 Extension.collaborative staging. 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 Extension.collaborative staging. 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

  • Extension collaborative staging Cancer
  • Extension.collaborative staging
  • This belongs to the set of Collaborative Staging (CS) data items effective with 2004 diagnosis. It is based on and replaces EOD--Extension (790) and EOD--Extension Prost Path (800). This modification for CS is collapsible into AJCC T code according to the sixth edition of AJCC Cancer Staging Manual. "CS Extension" identifies the primary tumor growth within the organ of origin or its extension into neighboring organs. For certain sites such as ovary, discontinuous metastasis is coded in the CS Extension field. Site-specific codes provide extensive detail describing disease extent. "CS Extension" is used to derive the Derived AJCC T [2940], Derived AJCC Stage Group [3000], Derived SS1977 [3010], and Derived SS2000 [3020] codes. .. NAACCR Data Standards and Data Dictionary Version 11
  • CA; CS; EXT; Extension CS; Misc; Miscellaneous; Nominal; Oncology; Other; Point in time; Random; Spec; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); Typ; 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

Extension collaborative staging CancerExtension CS CancerExtension.collaborative stagingTUMRRGTTypePtCancer.XXX

Frequently asked questions

Code details

Code42080-2
SystemLOINC
Display nameExtension collaborative staging Cancer
DescriptionExtension.collaborative staging
Short nameExtension CS Cancer
ComponentExtension.collaborative staging
PropertyType
TimingPt
System (specimen)Cancer.XXX
ScaleNom
ClassTUMRRGT
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.16
Last changed2.42

Part names

Extension.collaborative stagingTypePtCancer.XXXNomExtension collaborative stagingPoint 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 42080-2 | HealthAssure