LOINCActiveBoth

LOINC Code 86166-6: S. pneumoniae Danish type 9N IgG IA (S) [Mass/Vol]

86166-6 is a LOINC code used to identify S. pneumoniae Danish type 9N IgG IA (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 9N Ab.IgG. 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 Danish serotype 9N Ab.IgG. 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
  • Method: IA

What it does not mean

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

Key facts

  • Streptococcus pneumoniae Danish serotype 9N IgG Ab [Mass/volume] in Serum by Immunoassay
  • Streptococcus pneumoniae Danish serotype 9N Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Level; Mass concentration; MEIA; Microbiology; Pneu; pneum; Pneumo; Pneumococ; Pneumococcal; Pneumococcal pneumonia; Pneumococcus; Pneumon; Pneumonia; Point in time; PPSV23; QNT; Quan; Quant; Quantitative; Random; S pneum Da 9N; S pneum Da 9N Ab; S pneum Da 9N IgG; S pneum Da type; S pneumo; S pneumoniae; Serum; Spn; SR; Strep; Strept; SUDS; U.S. serotype 9

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 9N IgG IA (S) [Mass/Vol]Streptococcus pneumoniae Danish serotype 9N IgG Ab [Mass/volume] in Serum by ImmunoassayS pneum Da 9N IgG Ser IA-mCncStreptococcus pneumoniae Danish serotype 9N Ab.IgGMICROStreptococcus pneumoniae Danish serotype 9N IgG antibody, BloodMCnc

Frequently asked questions

Code details

Code86166-6
SystemLOINC
Display nameS. pneumoniae Danish type 9N IgG IA (S) [Mass/Vol]
DescriptionStreptococcus pneumoniae Danish serotype 9N Ab.IgG
Short nameS pneum Da 9N IgG Ser IA-mCnc
ComponentStreptococcus pneumoniae Danish serotype 9N Ab.IgG
PropertyMCnc
TimingPt
System (specimen)Ser
ScaleQn
MethodIA
ClassMICRO
Example unitsug/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.61
Last changed2.73

Consumer names

Streptococcus pneumoniae Danish serotype 9N IgG antibody, Blood

Part names

Streptococcus pneumoniae Danish serotype 9N Ab.IgGMCncPtSerQnIAStreptococcus pneumoniae Danish serotype 9N IgGMass ConcentrationPoint in time (spot)SerumImmunoassay

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 86166-6 | HealthAssure