LOINCActiveBoth

LOINC Code 14805-6: LDH Pyruvate to lactate reaction [Catalytic activity/Vol]

14805-6 is a LOINC code used to identify LDH Pyruvate to lactate reaction [Catalytic activity/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 Lactate dehydrogenase. 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 Lactate dehydrogenase. 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: Both
  • Method: Reaction: pyruvate to lactate

What it does not mean

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

Key facts

  • Lactate dehydrogenase [Enzymatic activity/volume] in Serum or Plasma by Pyruvate to lactate reaction
  • Lactate dehydrogenase
  • Ortho measures piruvate lactate which is three times higher than the reaction going the other direction.
  • 2-Hydroxypropanoic acid; 2-hydroxy-propionate; 2-hydroxy-propionic acid; Catalytic Concentration; Chemistry; Dehydrog; Dehyrdogenase; L.D.H; Lact; Lactic acid; Lactic acid dehydrogenase; LD; LDH; L-lactate; L-lactate dehydrogenase; P to L; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; React; Rxn; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tumor marker; UniversalLabOrders

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

LDH Pyruvate to lactate reaction [Catalytic activity/Vol]Lactate dehydrogenase [Enzymatic activity/volume] in Serum or Plasma by Pyruvate to lactate reactionLDH SerPl P to L-cCncLactate dehydrogenaseCHEMLactate Dehydrogenase (LDH), BloodCCnc

Frequently asked questions

Code details

Code14805-6
SystemLOINC
Display nameLDH Pyruvate to lactate reaction [Catalytic activity/Vol]
DescriptionLactate dehydrogenase
Short nameLDH SerPl P to L-cCnc
ComponentLactate dehydrogenase
PropertyCCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
MethodReaction: pyruvate to lactate
ClassCHEM
Example unitsarb U/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.73

Consumer names

Lactate Dehydrogenase (LDH), Blood

Part names

Lactate dehydrogenaseCCncPtSer/PlasQnReaction: pyruvate to lactateCatalytic ConcentrationPoint in time (spot)Serum or PlasmaReaction - pyruvate to lactate

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.