LOINCActiveObservation

LOINC Code 13523-6: WBC other/Leukocytes Manual cnt (CSF)

13523-6 is a LOINC code used to identify WBC other/Leukocytes Manual cnt (CSF) 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 Leukocytes other/Leukocytes. It is commonly used with the system or sample type CSF.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Leukocytes other/Leukocytes. It is commonly used with the system or sample type CSF.

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: Manual count

What it does not mean

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

Key facts

  • Leukocytes other/Leukocytes in Cerebral spinal fluid by Manual count
  • Leukocytes other/Leukocytes
  • Cerebral spinal fluid; Cerebrospinal Fl; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Manl; Neuro; Neurology; Number Fraction; Othr; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; WBC; WBC Other; 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

WBC other/Leukocytes Manual cnt (CSF)Leukocytes other/Leukocytes in Cerebral spinal fluid by Manual countWBC Other NFr CSF ManualLeukocytes other/LeukocytesHEM/BCOther white blood cells/White Blood Cells, Spinal fluidNFr

Frequently asked questions

Code details

Code13523-6
SystemLOINC
Display nameWBC other/Leukocytes Manual cnt (CSF)
DescriptionLeukocytes other/Leukocytes
Short nameWBC Other NFr CSF Manual
ComponentLeukocytes other/Leukocytes
PropertyNFr
TimingPt
System (specimen)CSF
ScaleQn
MethodManual count
ClassHEM/BC
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.79

Consumer names

Other white blood cells/White Blood Cells, Spinal fluid

Part names

Leukocytes other/leukocytesNFrPtCSFQnManual countNumber FractionPoint in time (spot)Cerebral spinal 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 13523-6 | HealthAssure