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 111552-6: Neurofilament light chain [Z-score]

Name: LOINC Code 111552-6: Neurofilament light chain [Z-score]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:21.941Z

111552-6 is a LOINC code used to identify Neurofilament light chain [Z-score] 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 Ser/Plas.

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 Ser/Plas.

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 [Z-score] in Serum or Plasma
Neurofilament light chain
Chains; Chemistry; Chn; NfL; Nfl chain; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Standard score; Z score; Z value; Z-score

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 [Z-score]Neurofilament light chain [Z-score] in Serum or PlasmaNfl chain Z-score SerPlNeurofilament light chainCHEMNeurofilament light chain, BloodZscore

Frequently asked questions

Code details

Code111552-6

SystemLOINC

Display nameNeurofilament light chain [Z-score]

DescriptionNeurofilament light chain

Short nameNfl chain Z-score SerPl

ComponentNeurofilament light chain

PropertyZscore

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example unitsscore

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.82

Last changed2.82

Consumer names

Neurofilament light chain, Blood

Part names

Neurofilament light chainZscorePtSer/PlasQnZ-scorePoint in time (spot)Serum or Plasma

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.