LOINCActiveObservation

LOINC Code 2411-7: Hexokinase 1/Total hexokinase (RBC) [Catalytic fraction]

2411-7 is a LOINC code used to identify Hexokinase 1/Total hexokinase (RBC) [Catalytic fraction] 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 Hexokinase 1/Hexokinase.total. It is commonly used with the system or sample type RBC.

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 Hexokinase 1/Hexokinase.total. It is commonly used with the system or sample type RBC.

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

Hexokinase 1/Hexokinase.total in Red Blood Cells
Hexokinase 1/Hexokinase.total
Hexokinase in erythrocytes can be measured as U/g Hb, U/10^12 Ercs, or U/ml Ercs. In human RBCs there are two isoenzymesHK-1, which predominates, and HK-3.
Catalytic Fraction; Chemistry; Erythrocytes; Hexokinase1; HK; HK1; i; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Red blood cells; Red blood corpusles; Tot; Totl

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

Hexokinase 1/Total hexokinase (RBC) [Catalytic fraction]Hexokinase 1/Hexokinase.total in Red Blood CellsHexokinase1 CFr RBCHexokinase 1/Hexokinase.totalCHEMHexokinase 1/Total Hexokinase, Red blood cellsCFr

Frequently asked questions

Code details

Code2411-7
SystemLOINC
Display nameHexokinase 1/Total hexokinase (RBC) [Catalytic fraction]
DescriptionHexokinase 1/Hexokinase.total
Short nameHexokinase1 CFr RBC
ComponentHexokinase 1/Hexokinase.total
PropertyCFr
TimingPt
System (specimen)RBC
ScaleQn
ClassCHEM
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Hexokinase 1/Total Hexokinase, Red blood cells

Part names

Hexokinase 1/Hexokinase.totalCFrPtRBCQnCatalytic FractionPoint in time (spot)Red Blood Cells

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.