LOINCActiveObservation

LOINC Code 84894-5: Dimension (Spec) [Length]

84894-5 is a LOINC code used to identify Dimension (Spec) [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 Dimension. It is commonly used with the system or sample type 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 Dimension. It is commonly used with the system or sample type 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

Dimension [Length] of Specimen
Dimension
The size of a specimen may be recorded in two or more linear measurements (dimensions), e.g. length and width. Each dimension can be recorded by repeating this term. Specimen dimensions enable comparison with clinical and imaging estimates of volume. To record only the length of a specimen, use "Specimen length" [LOINC33723-8]. This term was created for, but not limited in use to, the Prostate Cancer (Radical Prostatectomy) Structured Reporting Protocol (2nd Edition, 2014) developed by the Royal College of Pathologists of Australasia (RCPA) for structured reporting of prostate cancer.
Length; Pathology; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec

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

Dimension (Spec) [Length]Dimension [Length] of SpecimenDimension SpecDimensionPATHDimension, SpecimenLen

Frequently asked questions

Code details

Code84894-5
SystemLOINC
Display nameDimension (Spec) [Length]
DescriptionDimension
Short nameDimension Spec
ComponentDimension
PropertyLen
TimingPt
System (specimen)Specimen
ScaleQn
ClassPATH
Example unitsmm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.58
Last changed2.68

Consumer names

Dimension, Specimen

Part names

DimensionLenPtSpecimenQnLengthPoint 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 84894-5 | HealthAssure