What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINC

LOINC Code 26939-9: S. pneumoniae 19 Ab (S) [Mass/Vol]

Name: LOINC Code 26939-9: S. pneumoniae 19 Ab (S) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:14.098Z

26939-9 is a LOINC code used to identify S. pneumoniae 19 Ab (S) [Mass/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 Streptococcus pneumoniae 19 Ab. It is commonly used with the system or sample type Ser.

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 Streptococcus pneumoniae 19 Ab. 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: DEPRECATED

What it does not mean

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

Key facts

Deprecated Streptococcus pneumoniae 19 Ab [Mass/volume] in Serum
Streptococcus pneumoniae 19 Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; ID; Infectious Disease; InfectiousDisease; Level; Mass concentration; Microbiology; Pneu; pneum; Pneumo; Pneumococ; Pneumococcal; Pneumococcal pneumonia; Pneumococcus; Pneumon; Pneumonia; Point in time; QNT; Quan; Quant; Quantitative; Random; S pneum19; S pneumo; S pneumoniae; Serum; Spn; SR; Strep; Strept; Streptococcus pneumoniae 19f

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

S. pneumoniae 19 Ab (S) [Mass/Vol]Deprecated Streptococcus pneumoniae 19 Ab [Mass/volume] in SerumDeprecated S pneum19 Ab Ser-mCncStreptococcus pneumoniae 19 AbMICROStreptococcus pneumoniae 19 antibody, BloodMCnc

Frequently asked questions

Code details

Code26939-9

SystemLOINC

Display nameS. pneumoniae 19 Ab (S) [Mass/Vol]

DescriptionStreptococcus pneumoniae 19 Ab

Short nameDeprecated S pneum19 Ab Ser-mCnc

ComponentStreptococcus pneumoniae 19 Ab

PropertyMCnc

TimingPt

System (specimen)Ser

ScaleQn

ClassMICRO

Example unitsug/mL

StatusDEPRECATED

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.00

Last changed2.70

Consumer names

Streptococcus pneumoniae 19 antibody, Blood

Part names

Streptococcus pneumoniae 19 AbMCncPtSerQnMass ConcentrationPoint 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.