LOINCActiveOrder

LOINC Code 55121-8: Multiple sclerosis panel (S+CSF)

55121-8 is a LOINC code used to identify Multiple sclerosis panel (S+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 Multiple sclerosis panel. It is commonly used with the system or sample type Ser+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 Multiple sclerosis panel. It is commonly used with the system or sample type Ser+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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

  • Multiple sclerosis panel - Serum and CSF
  • Multiple sclerosis panel
  • Both serum and cerebrospinal fluid; Cerebral spinal fluid; Cerebrospinal Fl; Chemistry; MS; MS Pnl; Mult; Multi; Neuro; Neurology; Pan; PANEL.CHEMISTRY; Panl; Pnl; Point in time; Random; Serum; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; SR

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

Multiple sclerosis panel (S+CSF)Multiple sclerosis panel - Serum and CSFMS Pnl Ser+CSFMultiple sclerosis panelPANEL.CHEMMultiple sclerosis panel, Serum+Cerebrospinal fluid-

Frequently asked questions

Code details

Code55121-8
SystemLOINC
Display nameMultiple sclerosis panel (S+CSF)
DescriptionMultiple sclerosis panel
Short nameMS Pnl Ser+CSF
ComponentMultiple sclerosis panel
Property-
TimingPt
System (specimen)Ser+CSF
Scale-
ClassPANEL.CHEM
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.27
Last changed2.73

Consumer names

Multiple sclerosis panel, Serum+Cerebrospinal fluid

Part names

Multiple sclerosis panel-PtSer+CSFPoint in time (spot)Serum and CSF

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 55121-8 | HealthAssure