LOINCActiveBoth

LOINC Code 2913-2: Pyruvate kinase [Catalytic activity/Vol]

2913-2 is a LOINC code used to identify Pyruvate kinase [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 Pyruvate kinase. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Pyruvate kinase. 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

What it does not mean

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

Key facts

  • Pyruvate kinase [Enzymatic activity/volume] in Serum or Plasma
  • Pyruvate kinase
  • Catalytic Concentration; Chemistry; PK; Pl; Plasma; Plsm; Point in time; Pyruvic acid; QNT; Quan; Quant; Quantitative; Random; 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

Pyruvate kinase [Catalytic activity/Vol]Pyruvate kinase [Enzymatic activity/volume] in Serum or PlasmaPK SerPl-cCncPyruvate kinaseCHEMPyruvate kinase, BloodCCnc

Frequently asked questions

Code details

Code2913-2
SystemLOINC
Display namePyruvate kinase [Catalytic activity/Vol]
DescriptionPyruvate kinase
Short namePK SerPl-cCnc
ComponentPyruvate kinase
PropertyCCnc
TimingPt
System (specimen)Ser/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

Pyruvate kinase, Blood

Part names

Pyruvate kinaseCCncPtSer/PlasQnCatalytic ConcentrationPoint 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 2913-2 | HealthAssure