LOINCActiveObservation

LOINC Code 13494-0: Specimen volume (4 hour Dial fld)

13494-0 is a LOINC code used to identify Specimen volume (4 hour Dial fld) 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 volume. It is commonly used with the system or sample type Dial fld.

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 volume. It is commonly used with the system or sample type Dial fld.

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

  • Volume of 4 hour Dialysis fluid
  • Specimen volume
  • 240 minutes; 4 hours; 4.0Hr; 4HR; Diaf; Dialysate; Dialysis fluid; QNT; Quan; Quant; Quantitative; Spec; Vol; Volume

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 volume (4 hour Dial fld)Volume of 4 hour Dialysis fluidSpecimen vol 4h Dial fldSpecimen volumeSPECSpecimen volume, Dialysis fluidVol

Frequently asked questions

Code details

Code13494-0
SystemLOINC
Display nameSpecimen volume (4 hour Dial fld)
DescriptionSpecimen volume
Short nameSpecimen vol 4h Dial fld
ComponentSpecimen volume
PropertyVol
Timing4H
System (specimen)Dial fld
ScaleQn
ClassSPEC
Example unitsmL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.42

Consumer names

Specimen volume, Dialysis fluid

Part names

Specimen volumeVol4HDial fldQnVolume4 hoursDialysis fluid

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 13494-0 | HealthAssure