LOINCActiveObservation

LOINC Code 9642-0: CK.BB [Catalytic fraction]

9642-0 is a LOINC code used to identify CK.BB [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 Creatine kinase.BB/Creatine kinase.total. 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 Creatine kinase.BB/Creatine kinase.total. 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

  • Creatine kinase.BB/Creatine kinase.total in Serum or Plasma
  • Creatine kinase.BB/Creatine kinase.total
  • Catalytic Fraction; Chemistry; CK; CK 1; CK BB; CK-BB; CPK; Creatine phosphokinase; Neuro; Neurology; Percent; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; 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

CK.BB [Catalytic fraction]Creatine kinase.BB/Creatine kinase.total in Serum or PlasmaCK BB CFr SerPlCreatine kinase.BB/Creatine kinase.totalCHEMCreatine Kinase-BB Form (CK-BB), BloodCFr

Frequently asked questions

Code details

Code9642-0
SystemLOINC
Display nameCK.BB [Catalytic fraction]
DescriptionCreatine kinase.BB/Creatine kinase.total
Short nameCK BB CFr SerPl
ComponentCreatine kinase.BB/Creatine kinase.total
PropertyCFr
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Creatine Kinase-BB Form (CK-BB), Blood

Part names

Creatine kinase.BB/Creatine kinase.totalCFrPtSer/PlasQnCatalytic FractionPoint 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 9642-0 | HealthAssure