HealthAssure
HealthAssureGood Life
LOINCActiveObservation

LOINC Code 55780-1: Nucleated RBC Manual cnt (CSF) [#]

55780-1 is a LOINC code used to identify Nucleated RBC 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 Erythrocytes.nucleated. 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 Erythrocytes.nucleated. 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

  • Nucleated erythrocytes [#] in Cerebral spinal fluid by Manual count
  • Erythrocytes.nucleated
  • Cerebral spinal fluid; Cerebrospinal Fl; Cnt; Count; Discocytes; Erthrocyte; Erythroblasts; Erythrocyte; HEMATOLOGY/CELL COUNTS; Manl; Normoblasts; nRBC; nRBCs; Nuc; Number; Point in time; QNT; Quan; Quant; Quantitative; Random; RBC; RBCS; Red blood cell; Red blood cells; Red blood corpuscle; Red blood corpusles; Red cell; Red cells; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid

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

Nucleated RBC Manual cnt (CSF) [#]Nucleated erythrocytes [#] in Cerebral spinal fluid by Manual countnRBC CSF ManualErythrocytes.nucleatedHEM/BCNucleated red blood cells, Spinal fluidNum

Frequently asked questions

Code details

Code55780-1
SystemLOINC
Display nameNucleated RBC Manual cnt (CSF) [#]
DescriptionErythrocytes.nucleated
Short namenRBC CSF Manual
ComponentErythrocytes.nucleated
PropertyNum
TimingPt
System (specimen)CSF
ScaleQn
MethodManual count
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.69

Consumer names

Nucleated red blood cells, Spinal fluid

Part names

Erythrocytes.nucleatedNumPtCSFQnManual countNucleated erythrocytesNumber (count)Point 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 55780-1 | HealthAssure