LOINCActiveBoth

LOINC Code 2651-8: NADH dehydrogenase (P) [Catalytic activity/Vol]

2651-8 is a LOINC code used to identify NADH dehydrogenase (P) [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 NADH dehydrogenase. It is commonly used with the system or sample type 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 NADH dehydrogenase. It is commonly used with the system or sample type 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

What it does not mean

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

Key facts

  • NADH dehydrogenase [Enzymatic activity/volume] in Plasma
  • NADH dehydrogenase
  • Catalytic Concentration; Chemistry; Dehydrog; Dehyrdogenase; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random

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

NADH dehydrogenase (P) [Catalytic activity/Vol]NADH dehydrogenase [Enzymatic activity/volume] in PlasmaNADH Dehydrog Plas-cCncNADH dehydrogenaseCHEMNADH dehydrogenase, BloodCCnc

Frequently asked questions

Code details

Code2651-8
SystemLOINC
Display nameNADH dehydrogenase (P) [Catalytic activity/Vol]
DescriptionNADH dehydrogenase
Short nameNADH Dehydrog Plas-cCnc
ComponentNADH dehydrogenase
PropertyCCnc
TimingPt
System (specimen)Plas
ScaleQn
ClassCHEM
Example unitsarb U/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.68

Consumer names

NADH dehydrogenase, Blood

Part names

NADH dehydrogenaseCCncPtPlasQnCatalytic ConcentrationPoint in time (spot)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 2651-8 | HealthAssure