LOINCActive

LOINC Code 21953-5: Coding system for treatment [Identifier] Cancer

21953-5 is a LOINC code used to identify Coding system for treatment [Identifier] 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 Coding system for Rx. 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 Coding system for Rx. 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

  • Coding system for treatment [Identifier] Cancer
  • Coding system for Rx
  • Code describing how treatment for this tumor now is coded... NAACCR Data Standards and Data Dictionary Version 11
  • CA; Coding sys for Rx; Ident; Identifier; Misc; Miscellaneous; Nominal; Oncology; Other; Point in time; Random; Spec; To be specified in another part of the message; Treatment; 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

Coding system for treatment [Identifier] CancerCoding sys for Rx CancerCoding system for RxTUMRRGTIDPtCancer.XXX

Frequently asked questions

Code details

Code21953-5
SystemLOINC
Display nameCoding system for treatment [Identifier] Cancer
DescriptionCoding system for Rx
Short nameCoding sys for Rx Cancer
ComponentCoding system for Rx
PropertyID
TimingPt
System (specimen)Cancer.XXX
ScaleNom
ClassTUMRRGT
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.27

Part names

Coding system for RxIDPtCancer.XXXNomIdentifierPoint 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 21953-5 | HealthAssure