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LOINC Code 26755-9: S. pneumoniae Danish type 18C Ab (S) [Mass/Vol]

26755-9 is a LOINC code used to identify S. pneumoniae Danish type 18C 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 Danish serotype 18C Ab. 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 Streptococcus pneumoniae Danish serotype 18C 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: ACTIVE
  • Order vs observation: Both

What it does not mean

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

Key facts

  • Streptococcus pneumoniae Danish serotype 18C Ab [Mass/volume] in Serum
  • Streptococcus pneumoniae Danish serotype 18C Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; ID; Infectious Disease; InfectiousDisease; Level; Mass concentration; Microbiology; PCV13; PCV7; Pneu; pneum; Pneumo; Pneumococ; Pneumococcal; Pneumococcal pneumonia; Pneumococcus; Pneumon; Pneumonia; Point in time; PPSV23; QNT; Quan; Quant; Quantitative; Random; S pneum Da 18C; S pneum Da 18C Ab; S pneum Da type; S pneumo; S pneumoniae; Serum; Spn; SR; Strep; Strept; U.S. serotype 56

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 Danish type 18C Ab (S) [Mass/Vol]Streptococcus pneumoniae Danish serotype 18C Ab [Mass/volume] in SerumS pneum Da 18C Ab Ser-mCncStreptococcus pneumoniae Danish serotype 18C AbMICROStreptococcus pneumoniae Danish serotype 18C antibody, BloodMCnc

Frequently asked questions

Code details

Code26755-9
SystemLOINC
Display nameS. pneumoniae Danish type 18C Ab (S) [Mass/Vol]
DescriptionStreptococcus pneumoniae Danish serotype 18C Ab
Short nameS pneum Da 18C Ab Ser-mCnc
ComponentStreptococcus pneumoniae Danish serotype 18C Ab
PropertyMCnc
TimingPt
System (specimen)Ser
ScaleQn
ClassMICRO
Example unitsng/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.73

Consumer names

Streptococcus pneumoniae Danish serotype 18C antibody, Blood

Part names

Streptococcus pneumoniae Danish serotype 18C 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.