What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 84892-9: Residual tumor classification Ql (Cancer specimen)

Name: LOINC Code 84892-9: Residual tumor classification Ql (Cancer specimen)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:11.791Z

84892-9 is a LOINC code used to identify Residual tumor classification Ql (Cancer specimen) 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 Residual tumor classification. It is commonly used with the system or sample type Cancer 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 Residual tumor classification. It is commonly used with the system or sample type Cancer 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

Residual tumor classification [Type] in Cancer specimen

Residual tumor classification

The residual tumor, or R, classification indicates the absence (R0) or presence (R1-R2) of residual tumor after treatment (e.g. surgical treatment alone, radiotherapy, chemotherapy, or multimodal therapy). It is used as an adjunct classification to the TNM system developed and maintained by the American Joint Committee on Cancer (AJCC). The R classification reflects the effectiveness of the primary treatment, is used when designing clinical management after treatment, and is a strong indicator of prognosis if applied in a consistent manner.[PMID12015777] This term was created for, but not limited in use to, the Colorectal Cancer Structured Reporting Protocol (2nd Edition, 2012) developed by the Royal College of Pathologists of Australasia (RCPA).

CA; Ca spec; Ordinal; Pathology; Point in time; QL; Qual; Qualitative; Random; Screen; Spec; Typ

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

Residual tumor classification Ql (Cancer specimen)Residual tumor classification [Type] in Cancer specimenResidual tumor classification Ca spec QlResidual tumor classificationPATHResidual tumor classification, Cancer specimenType

Frequently asked questions

Code details

Code84892-9

SystemLOINC

Display nameResidual tumor classification Ql (Cancer specimen)

DescriptionResidual tumor classification

Short nameResidual tumor classification Ca spec Ql

ComponentResidual tumor classification

PropertyType

TimingPt

System (specimen)Cancer specimen

ScaleOrd

ClassPATH

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.58

Last changed2.71

Consumer names

Residual tumor classification, Cancer specimen

Part names

Residual tumor classificationTypePtCancer specimenOrdPoint 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.