LOINCActiveObservation

LOINC Code 70038-5: Mononuclear cells/Leukocytes Auto (Periton fld)

70038-5 is a LOINC code used to identify Mononuclear cells/Leukocytes Auto (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 Mononuclear cells/Leukocytes. 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 Mononuclear cells/Leukocytes. 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: Observation
  • Method: Automated count

What it does not mean

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

Key facts

  • Mononuclear cells/Leukocytes in Peritoneal fluid by Automated count
  • Mononuclear cells/Leukocytes
  • Ascites; Ascitic fluid; Ascitis; Auto; Automated detection; Cell; Cellularity; Elec; Elect; Electr; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Mononuc; Mononuc Cells; Number Fraction; Percent; Peritoneal fluid; Point in time; Prt; QNT; Quan; Quant; Quantitative; Random; WBC; WBCs; White blood cell; White blood cells

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

Mononuclear cells/Leukocytes Auto (Periton fld)Mononuclear cells/Leukocytes in Peritoneal fluid by Automated countMononuc Cells NFr Prt AutoMononuclear cells/LeukocytesHEM/BCMononuclear cells/White Blood Cells, Peritoneal fluidNFr

Frequently asked questions

Code details

Code70038-5
SystemLOINC
Display nameMononuclear cells/Leukocytes Auto (Periton fld)
DescriptionMononuclear cells/Leukocytes
Short nameMononuc Cells NFr Prt Auto
ComponentMononuclear cells/Leukocytes
PropertyNFr
TimingPt
System (specimen)Periton fld
ScaleQn
MethodAutomated count
ClassHEM/BC
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.40
Last changed2.79

Consumer names

Mononuclear cells/White Blood Cells, Peritoneal fluid

Part names

Mononuclear cells/leukocytesNFrPtPeriton fldQnAutomated countNumber FractionPoint 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 70038-5 | HealthAssure