LOINCActiveObservation

LOINC Code 33729-5: Size additional dimension (Tumor) [Length]

33729-5 is a LOINC code used to identify Size additional dimension (Tumor) [Length] 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 Size.additional dimension. It is commonly used with the system or sample type Tumor.

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 Size.additional dimension. It is commonly used with the system or sample type Tumor.

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

  • Size additional dimension in Tumor
  • Size.additional dimension
  • Add; Cancer; Length; Pathology; PATHOLOGY PROTOCOLS; PATHOLOGY PROTOCOLS general; Point in time; QNT; Quan; Quant; Quantitative; Random; Size addl dim; tumors; tumour; tumours

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

Size additional dimension (Tumor) [Length]Size additional dimension in TumorSize addl dim TumorSize.additional dimensionPATH.PROTOCOLS.GENERSize additional dimension, TumorLen

Frequently asked questions

Code details

Code33729-5
SystemLOINC
Display nameSize additional dimension (Tumor) [Length]
DescriptionSize.additional dimension
Short nameSize addl dim Tumor
ComponentSize.additional dimension
PropertyLen
TimingPt
System (specimen)Tumor
ScaleQn
ClassPATH.PROTOCOLS.GENER
Example unitscm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.70

Consumer names

Size additional dimension, Tumor

Part names

Size.additional dimensionLenPtTumorQnSize additional dimensionLengthPoint 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 33729-5 | HealthAssure