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.

LOINCActiveObservation

LOINC Code 33483-9: Patient symptoms pre dose lactose PO [Interp]

Name: LOINC Code 33483-9: Patient symptoms pre dose lactose PO [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:20.069Z

33483-9 is a LOINC code used to identify Patient symptoms pre dose lactose PO [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 Patient symptoms^pre dose lactose PO. It is commonly used with the system or sample type ^Patient.

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 Patient symptoms^pre dose lactose PO. It is commonly used with the system or sample type ^Patient.

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

Patient symptoms [Interpretation] --pre dose lactose PO
Patient symptoms^pre dose lactose PO
Before; CHEMISTRY.CHALLENGE TESTING; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; LTT; Nominal; Point in time; pre Lac PO; Random; Sx

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

Patient symptoms pre dose lactose PO [Interp]Patient symptoms [Interpretation] --pre dose lactose POSymptoms pre Lac PO Patient-ImpPatient symptoms^pre dose lactose POCHALPatient symptoms before dose lactose by mouthImp

Frequently asked questions

Code details

Code33483-9

SystemLOINC

Display namePatient symptoms pre dose lactose PO [Interp]

DescriptionPatient symptoms^pre dose lactose PO

Short nameSymptoms pre Lac PO Patient-Imp

ComponentPatient symptoms^pre dose lactose PO

PropertyImp

TimingPt

System (specimen)^Patient

ScaleNom

ClassCHAL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.12

Consumer names

Patient symptoms before dose lactose by mouth

Part names

Patient symptoms^pre dose lactose POImpPt^PatientNomImpression/interpretation of studyPoint in time (spot)

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.