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 44630-2: Specimen size additional dimension 1 (Breast tumor) [Area]

Name: LOINC Code 44630-2: Specimen size additional dimension 1 (Breast tumor) [Area]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:30.172Z

44630-2 is a LOINC code used to identify Specimen size additional dimension 1 (Breast tumor) [Area] 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 Specimen size.additional dimension 1. It is commonly used with the system or sample type Breast 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 Specimen size.additional dimension 1. It is commonly used with the system or sample type Breast 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

Specimen size additional dimension 1 in Breast tumor
Specimen size.additional dimension 1
Add; Brst; BT; Cancer; i; Pathology; PATHOLOGY PROTOCOLS; PATHOLOGY PROTOCOLS BREAST; Point in time; QNT; Quan; Quant; Quantitative; Random; Size addl dim; Spec; Spec size addl dim 1; 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

Specimen size additional dimension 1 (Breast tumor) [Area]Specimen size additional dimension 1 in Breast tumorSpec size addl dim 1 BTSpecimen size.additional dimension 1PATH.PROTOCOLS.BRSTSpecimen size additional dimension 1, Breast TumorArea

Frequently asked questions

Code details

Code44630-2

SystemLOINC

Display nameSpecimen size additional dimension 1 (Breast tumor) [Area]

DescriptionSpecimen size.additional dimension 1

Short nameSpec size addl dim 1 BT

ComponentSpecimen size.additional dimension 1

PropertyArea

TimingPt

System (specimen)Breast tumor

ScaleQn

ClassPATH.PROTOCOLS.BRST

Example unitscm

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.17

Last changed2.70

Consumer names

Specimen size additional dimension 1, Breast Tumor

Part names

Specimen size.additional dimension 1AreaPtBreast tumorQnSpecimen size additional dimension 1Point 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.