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.

LOINCOrder

LOINC Code 109625-4: Adenovirus Ag (Lower resp) [Measurement]

Name: LOINC Code 109625-4: Adenovirus Ag (Lower resp) [Measurement]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:21.043Z

109625-4 is a LOINC code used to identify Adenovirus Ag (Lower resp) [Measurement] 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 Adenovirus Ag. It is commonly used with the system or sample type Respiratory system specimen.lower.

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 Adenovirus Ag. It is commonly used with the system or sample type Respiratory system specimen.lower.

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: TRIAL
Order vs observation: Order

What it does not mean

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

Key facts

Adenovirus Ag [Measurement] in Lower respiratory specimen

Adenovirus Ag

This term is intended to collate similar measurements for the LOINC SNOMED CT Collaboration in an ontological view. Additionally, it can be used to communicate a laboratory order, either alone or in combination with specimen or other information in the order. It may NOT be used to report back the measured patient value. [https//lo.inc/ce2mb6]

Adeno virus; Antigen; Antigens; Breathing; HAdV; Lab orders; Low; Lower resp; Lungs; Msmt; RS; Spec

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

Adenovirus Ag (Lower resp) [Measurement]Adenovirus Ag [Measurement] in Lower respiratory specimenHAdV Ag Msmt Lower respAdenovirus AgLABORDERS.ONTOLOGYAdenovirus antigen, Lower respiratory{Measurement}

Frequently asked questions

Code details

Code109625-4

SystemLOINC

Display nameAdenovirus Ag (Lower resp) [Measurement]

DescriptionAdenovirus Ag

Short nameHAdV Ag Msmt Lower resp

ComponentAdenovirus Ag

Property{Measurement}

Timing-

System (specimen)Respiratory system specimen.lower

Scale-

ClassLABORDERS.ONTOLOGY

StatusTRIAL

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.81

Last changed2.81

Consumer names

Adenovirus antigen, Lower respiratory

Part names

Adenovirus Ag{Measurement}-Respiratory system specimen.lowerMeasurementLower respiratory specimen

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.