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.

LOINCActive

LOINC Code 18793-0: Use no fixed time limit on data (any of the selected type are relevant no matter when obtained)

Name: LOINC Code 18793-0: Use no fixed time limit on data (any of the selected type are relevant no matter when obtained)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:27.591Z

18793-0 is a LOINC code used to identify Use no fixed time limit on data (any of the selected type are relevant no matter when obtained) 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 Use no fixed time limit on data (any of the selected type are relevant no matter when obtained). It is commonly used with the system or sample type X12^277.

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 Use no fixed time limit on data (any of the selected type are relevant no matter when obtained). It is commonly used with the system or sample type X12^277.

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

What it does not mean

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

Key facts

Use no fixed time limit on data (any of the selected type are relevant no matter when obtained)
Indicates inclusion of all data of the selected type with no fixed time limit. Any of the selected data are relevant no matter when obtained.
ATTACH; ATTACH.MODIFIER; Point in time; Random

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

Use no fixed time limit on data (any of the selected type are relevant no matter when obtained)ATTACH.MODIFIERScope.modifier.selection itemPtX12^277-Point in time (spot)

Frequently asked questions

Code details

Code18793-0

SystemLOINC

Display nameUse no fixed time limit on data (any of the selected type are relevant no matter when obtained)

ComponentUse no fixed time limit on data (any of the selected type are relevant no matter when obtained)

PropertyScope.modifier.selection item

TimingPt

System (specimen)X12^277

Scale-

ClassATTACH.MODIFIER

StatusACTIVE

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.27

Part names

Use no fixed time limit on data (any of the selected type are relevant no matter when obtained)Scope.modifier.selection itemPtX12^277-Point 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.