LOINCActiveObservation

LOINC Code 53776-1: HAV Ab (S) [Interp]

53776-1 is a LOINC code used to identify HAV Ab (S) [Interp] 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 Hepatitis A virus 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 Hepatitis A virus 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: Observation

What it does not mean

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

Key facts

  • Hepatitis A virus Ab [Interpretation] in Serum
  • Hepatitis A virus Ab
  • This term is used to report the interpretation of serology testing for Hepatitis A virus, i.e., whether the combination of two or more specific antibody results (IgG, IgM, IgA or total) indicates recent or past exposure/infection.
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; HAV; Hep; Hep A; Hepatis; Hepatit; Hepatitis; Hepatitis type A; Hepatology; ID; Impression; Impression/interpretation of study; Impressions; Infectious Disease; InfectiousDisease; Interp; Interpretation; Liver; Microbiology; Nominal; Point in time; 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

HAV Ab (S) [Interp]Hepatitis A virus Ab [Interpretation] in SerumHAV Ab Ser-ImpHepatitis A virus AbMICROHepatitis A virus (HAV) antibody, BloodImp

Frequently asked questions

Code details

Code53776-1
SystemLOINC
Display nameHAV Ab (S) [Interp]
DescriptionHepatitis A virus Ab
Short nameHAV Ab Ser-Imp
ComponentHepatitis A virus Ab
PropertyImp
TimingPt
System (specimen)Ser
ScaleNom
ClassMICRO
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.26
Last changed2.73

Consumer names

Hepatitis A virus (HAV) antibody, Blood

Part names

Hepatitis A virus AbImpPtSerNomImpression/interpretation of studyPoint 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 53776-1 | HealthAssure