LOINCActiveObservation

LOINC Code 2861-3: Albumin Elph (CSF) [Mass/Vol]

2861-3 is a LOINC code used to identify Albumin Elph (CSF) [Mass/Vol] 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 Albumin. 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 Albumin. 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: Electrophoresis

What it does not mean

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

Key facts

  • Albumin [Mass/volume] in Cerebral spinal fluid by Electrophoresis
  • Albumin
  • Alb; Cerebral spinal fluid; Cerebrospinal Fl; Chemistry; Elec; Elect; Electr; Electro; Electrophhrs; Electrophrs; Elp; Elph; Ep; Level; Mass concentration; Neuro; Neurology; Point in time; Protein.albumin; QNT; Quan; Quant; Quantitative; Random; 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

Albumin Elph (CSF) [Mass/Vol]Albumin [Mass/volume] in Cerebral spinal fluid by ElectrophoresisAlbumin CSF Elph-mCncAlbuminCHEMAlbumin, Spinal fluidMCnc

Frequently asked questions

Code details

Code2861-3
SystemLOINC
Display nameAlbumin Elph (CSF) [Mass/Vol]
DescriptionAlbumin
Short nameAlbumin CSF Elph-mCnc
ComponentAlbumin
PropertyMCnc
TimingPt
System (specimen)CSF
ScaleQn
MethodElectrophoresis
ClassCHEM
Example unitsg/L;g/dL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

Albumin, Spinal fluid

Part names

AlbuminMCncPtCSFQnElectrophoresisMass ConcentrationPoint 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 2861-3 | HealthAssure