LOINCActiveObservation

LOINC Code 33213-0: Glycine in plasma/Glycine in CSF (P+CSF) [Relative moles/Vol]

33213-0 is a LOINC code used to identify Glycine in plasma/Glycine in CSF (P+CSF) [Relative moles/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 Glycine plas/Glycine CSF. It is commonly used with the system or sample type Plas+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 Glycine plas/Glycine CSF. It is commonly used with the system or sample type Plas+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

What it does not mean

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

Key facts

Glycine in plasma/Glycine in CSF
Glycine plas/Glycine CSF
Requester confirmed this is plasma"CSF ratio.
Cerebral spinal fluid; Cerebrospinal Fl; Chemistry; Gly; Glycine PlCSF; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; RlSCnc; 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

Glycine in plasma/Glycine in CSF (P+CSF) [Relative moles/Vol]Glycine in plasma/Glycine in CSFGlycine Plas/CSFGlycine plas/Glycine CSFCHEMGlycine in plasma/Glycine in CSF, Blood+Spinal fluidRelSCnc

Frequently asked questions

Code details

Code33213-0
SystemLOINC
Display nameGlycine in plasma/Glycine in CSF (P+CSF) [Relative moles/Vol]
DescriptionGlycine plas/Glycine CSF
Short nameGlycine Plas/CSF
ComponentGlycine plas/Glycine CSF
PropertyRelSCnc
TimingPt
System (specimen)Plas+CSF
ScaleQn
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.70

Consumer names

Glycine in plasma/Glycine in CSF, Blood+Spinal fluid

Part names

Glycine plas/Glycine CSFRelSCncPtPlas+CSFQnRelative Substance ConcentrationPoint in time (spot)Plasma 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.