LOINCActiveBoth

LOINC Code 32996-1: HER2 Ag (S) [Mass/Vol]

32996-1 is a LOINC code used to identify HER2 Ag (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 HER2 Ag. 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 HER2 Ag. 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

  • HER2 Ag [Mass/volume] in Serum
  • HER2 Ag
  • Antigen; Antigens; C-ERBB-2; erb; ERB2; ERB-2; erbB2; HER-2; HER-2/neu; Level; Mass concentration; Oncology; PATHOLOGY; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR

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

HER2 Ag (S) [Mass/Vol]HER2 Ag [Mass/volume] in SerumHer2 Ag Ser-mCncHER2 AgPATHHER2 antigen, BloodMCnc

Frequently asked questions

Code details

Code32996-1
SystemLOINC
Display nameHER2 Ag (S) [Mass/Vol]
DescriptionHER2 Ag
Short nameHer2 Ag Ser-mCnc
ComponentHER2 Ag
PropertyMCnc
TimingPt
System (specimen)Ser
ScaleQn
ClassPATH
Example unitsng/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.82

Consumer names

HER2 antigen, Blood

Part names

HER2 AgMCncPtSerQnMass 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.

LOINC Code 32996-1 | HealthAssure