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.

LOINCActiveOrder

LOINC Code 57775-9: Valproate.free and Valproate panel

Name: LOINC Code 57775-9: Valproate.free and Valproate panel
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:38.757Z

57775-9 is a LOINC code used to identify Valproate.free and Valproate panel 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 Valproate.free & Valproate panel. 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 Valproate.free & Valproate panel. 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: Order
Panel type: Panel

What it does not mean

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

Key facts

Valproate.free and Valproate panel - Serum or Plasma
Valproate.free & Valproate panel
Depakene; Divalproex; DRUG/TOXICOLOGY; Drugs; FR; Neuro; Neurology; Non-protein bound; Pan; PANEL.DRUG & TOXICOLOGY; Panl; Pl; Plasma; Plsm; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; VALP; Valproate Free; Valproate.free + Valproate pnl; Valproic acid

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

Valproate.free and Valproate panelValproate.free and Valproate panel - Serum or PlasmaValproate.free + Valproate pnl SerPlValproate.free & Valproate panelPANEL.DRUG/TOXFree Valproate and Valproate panel, Blood-

Frequently asked questions

Code details

Code57775-9

SystemLOINC

Display nameValproate.free and Valproate panel

DescriptionValproate.free & Valproate panel

Short nameValproate.free + Valproate pnl SerPl

ComponentValproate.free & Valproate panel

Property-

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassPANEL.DRUG/TOX

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.73

Consumer names

Free Valproate and Valproate panel, Blood

Part names

Valproate.free & Valproate panel-PtSer/PlasQnValproate.free and Valproate panelPoint 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.