LOINCActiveOrder

LOINC Code 34537-1: Fluid intake and output panel 8 hour

34537-1 is a LOINC code used to identify Fluid intake and output panel 8 hour 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 Fluid intake & output panel. It is commonly used with the system or sample type ^Patient.

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 Fluid intake & output panel. It is commonly used with the system or sample type ^Patient.

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: Order
  • Panel type: Panel

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Fluid intake and output panel 8 hour
  • Fluid intake & output panel
  • 1/3 day; 8 hours; 8HR; Fld; Fluid IO Pnl; IO; Pan; PANEL.IO; Panl; Pnl

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

Fluid intake and output panel 8 hourFluid IO Pnl 8hFluid intake & output panelPANEL.IO-8H^Patient

Frequently asked questions

Code details

Code34537-1
SystemLOINC
Display nameFluid intake and output panel 8 hour
DescriptionFluid intake & output panel
Short nameFluid IO Pnl 8h
ComponentFluid intake & output panel
Property-
Timing8H
System (specimen)^Patient
Scale-
ClassPANEL.IO
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.10
Last changed2.38

Part names

Fluid intake & output panel-8H^PatientFluid intake and output panel8 hours

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 34537-1 | HealthAssure