LOINC

LOINC Code 66257-7: Shorter of the two times [PhenX]

66257-7 is a LOINC code used to identify Shorter of the two times [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 Shorter of the two times. 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 Shorter of the two times. 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

  • Shorter of the two times [PhenX]
  • Shorter of the two times
  • 2; Point in time; QNT; Quan; Quant; Quantitative; Random; Shorter of two times

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

Shorter of the two times [PhenX]Shorter of two times PhenXShorter of the two timesPHENXTimePt^Patient

Frequently asked questions

Code details

Code66257-7
SystemLOINC
Display nameShorter of the two times [PhenX]
DescriptionShorter of the two times
Short nameShorter of two times PhenX
ComponentShorter of the two times
PropertyTime
TimingPt
System (specimen)^Patient
ScaleQn
MethodPhenX
ClassPHENX
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.65

Part names

Shorter of the two timesTimePt^PatientQnPhenXTime (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.

LOINC Code 66257-7 | HealthAssure