LOINCActiveBoth

LOINC Code 4682-1: Streptokinase (S) [Titer]

4682-1 is a LOINC code used to identify Streptokinase (S) [Titer] 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 Streptokinase. It is commonly used with the system or sample type Ser.

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 Streptokinase. It is commonly used with the system or sample type Ser.

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

  • Streptokinase [Titer] in Serum
  • Streptokinase
  • Dilution factor; Dilution Factor (Titer); HEMATOLOGY/CELL COUNTS; Point in time; Random; Serum; SK; SmQn; SR; Titer; Titered; Titre; Ttr

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

Streptokinase (S) [Titer]Streptokinase [Titer] in SerumStreptokinase Titr SerStreptokinaseHEM/BCStreptokinase, BloodTitr

Frequently asked questions

Code details

Code4682-1
SystemLOINC
Display nameStreptokinase (S) [Titer]
DescriptionStreptokinase
Short nameStreptokinase Titr Ser
ComponentStreptokinase
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
ClassHEM/BC
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.75

Consumer names

Streptokinase, Blood

Part names

StreptokinaseTitrPtSerSemiQnTiterPoint in time (spot)Serum

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 4682-1 | HealthAssure