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.

LOINC

LOINC Code 66252-8: Seconds held, if less than 10 seconds [PhenX]

Name: LOINC Code 66252-8: Seconds held, if less than 10 seconds [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:45.459Z

66252-8 is a LOINC code used to identify Seconds held, if less than 10 seconds [PhenX] 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 Seconds held, if less than 10S. 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 Seconds held, if less than 10S. 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: TRIAL
Method: PhenX

What it does not mean

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

Key facts

Seconds held, if less than 10 seconds [PhenX]
Seconds held, if less than 10S
Point in time; QNT; Quan; Quant; Quantitative; 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

Seconds held, if less than 10 seconds [PhenX]Seconds held PhenXSeconds held, if less than 10SPHENXTimePt^Patient

Frequently asked questions

Code details

Code66252-8

SystemLOINC

Display nameSeconds held, if less than 10 seconds [PhenX]

DescriptionSeconds held, if less than 10S

Short nameSeconds held PhenX

ComponentSeconds held, if less than 10S

PropertyTime

TimingPt

System (specimen)^Patient

ScaleQn

MethodPhenX

ClassPHENX

Example unitss

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.38

Last changed2.65

Part names

Seconds held, if less than 10STimePt^PatientQnPhenXSeconds held, if less than 10 secondsTime (e.g. seconds)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.