LOINCActiveObservation

LOINC Code 79300-0: D- and L-2-hydroxyglutarate pattern Nar [Interp]

79300-0 is a LOINC code used to identify D- and L-2-hydroxyglutarate pattern Nar [Interp] 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 D- & L-2-hydroxyglutarate pattern. 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 D- & L-2-hydroxyglutarate pattern. 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: Observation

What it does not mean

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

Key facts

  • D- and L-2-hydroxyglutarate pattern [Interpretation] in Serum or Plasma Narrative
  • D- & L-2-hydroxyglutarate pattern
  • Narrative interpretation of results for D-2-hydroxyglutarate (D-2-HG) and L-2-hydroxyglutarate (L-2-HG) in serum or plasma, including whether the results are consistent with D-2-hydroxyglutaric aciduria, L-2-hydroxyglutaric aciduria or D,L-2-hydroxyglutaric aciduria.
  • 2-hydroxy-glutarate; 2-hydroxyglutaric acid; 2OH-gluterate; alpha-Hydroxyglutarate; alpha-Hydroxyglutaric acid; Chemistry; D2HG + L2HG pattern; Dextro; Hydroxyglutaric aciduria; II; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; L2HG; L-2-HG; L2HGA; L-2-HGA; Left; Levo; Narrative; Pl; Plasma; Plsm; Point in time; Random; Report; SerP; SerPl; SerPlas; Serum; Serum or plasma; 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

D- and L-2-hydroxyglutarate pattern Nar [Interp]D- and L-2-hydroxyglutarate pattern [Interpretation] in Serum or Plasma NarrativeD2HG + L2HG pattern SerPl-ImpD- & L-2-hydroxyglutarate patternCHEMInterpretation of D- and L-2-hydroxyglutarate Pattern test result, BloodImp

Frequently asked questions

Code details

Code79300-0
SystemLOINC
Display nameD- and L-2-hydroxyglutarate pattern Nar [Interp]
DescriptionD- & L-2-hydroxyglutarate pattern
Short nameD2HG + L2HG pattern SerPl-Imp
ComponentD- & L-2-hydroxyglutarate pattern
PropertyImp
TimingPt
System (specimen)Ser/Plas
ScaleNar
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.56

Consumer names

Interpretation of D- and L-2-hydroxyglutarate Pattern test result, Blood

Part names

D- & L-2-hydroxyglutarate patternImpPtSer/PlasNarD- and L-2-hydroxyglutarate patternImpression/interpretation of studyPoint 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.

LOINC Code 79300-0 | HealthAssure