LOINCActiveOrder

LOINC Code 29581-6: Differential panel (Periton fld)

29581-6 is a LOINC code used to identify Differential panel (Periton 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 Differential panel. It is commonly used with the system or sample type Periton 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 Differential panel. It is commonly used with the system or sample type Periton 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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

  • Differential panel - Peritoneal fluid
  • Differential panel
  • Ascites; Ascitic fluid; Ascitis; Diff; Diff Pnl; Differl; Differn; HEMATOLOGY/CELL COUNTS; Pan; PANEL.HEMATOLOGY& CELL COUNTS; Panl; Peritoneal fluid; Pnl; Point in time; Prt; Random

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

Differential panel (Periton fld)Differential panel - Peritoneal fluidDiff Pnl PrtDifferential panelPANEL.HEM/BCDifferential panel, Peritoneal fluid-

Frequently asked questions

Code details

Code29581-6
SystemLOINC
Display nameDifferential panel (Periton fld)
DescriptionDifferential panel
Short nameDiff Pnl Prt
ComponentDifferential panel
Property-
TimingPt
System (specimen)Periton fld
Scale-
ClassPANEL.HEM/BC
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.03
Last changed2.42

Consumer names

Differential panel, Peritoneal fluid

Part names

Differential panel-PtPeriton fldPoint in time (spot)Peritoneal 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 29581-6 | HealthAssure