What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 100996-8: Neurofilament light chain (CSF) [Mass/Vol]

Name: LOINC Code 100996-8: Neurofilament light chain (CSF) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.024Z

100996-8 is a LOINC code used to identify Neurofilament light chain (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 Neurofilament light chain. It is commonly used with the system or sample type CSF.

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 Neurofilament light chain. 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: Both

What it does not mean

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

Key facts

Neurofilament light chain [Mass/volume] in Cerebral spinal fluid
Neurofilament light chain
Cerebral spinal fluid; Cerebrospinal Fl; Chains; Chemistry; Chn; Level; Mass concentration; NfL; Nfl chain; Point in time; 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

Neurofilament light chain (CSF) [Mass/Vol]Neurofilament light chain [Mass/volume] in Cerebral spinal fluidNfl chain CSF-mCncNeurofilament light chainCHEMNeurofilament light chain, Spinal fluidMCnc

Frequently asked questions

Code details

Code100996-8

SystemLOINC

Display nameNeurofilament light chain (CSF) [Mass/Vol]

DescriptionNeurofilament light chain

Short nameNfl chain CSF-mCnc

ComponentNeurofilament light chain

PropertyMCnc

TimingPt

System (specimen)CSF

ScaleQn

ClassCHEM

Example unitsng/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.74

Last changed2.75

Consumer names

Neurofilament light chain, Spinal fluid

Part names

Neurofilament light chainMCncPtCSFQnMass 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.