LOINCActiveOrder

LOINC Code 80168-8: Pterins panel (CSF)

80168-8 is a LOINC code used to identify Pterins panel (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 Pterins panel. 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 Pterins panel. 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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

Pterins panel - Cerebral spinal fluid
Pterins panel
The analysis of pterins, including neopterin, biopterin, xanthopterin, tetrahydropterin, 7,8-dihydrobiopterin and pterin, in cerebrospinal fluid (CSF). This panel is performed to diagnose pediatric neurotransmitter diseases caused by defects in the pterin biosynthetic pathway, including inborn errors of sepiapterin reductase (SR), 6-pyruvoyl-tetrahydropterin synthase (PTPS), dihydropteridine reductase (DHPR), and guanosine triphosphate cyclohydrolase (GTPCH).[PMID25213568]
Cerebral spinal fluid; Cerebrospinal Fl; Chemistry; Pan; PANEL.CHEMISTRY; Panl; Pnl; Point in time; Pterins Pnl; 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

Pterins panel (CSF)Pterins panel - Cerebral spinal fluidPterins Pnl CSFPterins panelPANEL.CHEMPterins panel, Spinal fluid-

Frequently asked questions

Code details

Code80168-8
SystemLOINC
Display namePterins panel (CSF)
DescriptionPterins panel
Short namePterins Pnl CSF
ComponentPterins panel
Property-
TimingPt
System (specimen)CSF
Scale-
ClassPANEL.CHEM
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.54

Consumer names

Pterins panel, Spinal fluid

Part names

Pterins panel-PtCSFPoint 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 80168-8 | HealthAssure