LOINC

LOINC Code 66157-9: Did diabetes occur only during pregnancy [PhenX]

66157-9 is a LOINC code used to identify Did diabetes occur only during pregnancy [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 Did diabetes occur only during pregnancy. 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 Did diabetes occur only during pregnancy. 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

  • Did diabetes occur only during pregnancy [PhenX]
  • Did diabetes occur only during pregnancy
  • Diabetes women pregnancy; Finding; Findings; Gestation; Gestations; Gravida; Ordinal; Point in time; Pregnancies; QL; Qual; Qualitative; Random; Screen

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

Did diabetes occur only during pregnancy [PhenX]Diabetes women pregnancy PhenXDid diabetes occur only during pregnancyPHENXFindPt^Patient

Frequently asked questions

Code details

Code66157-9
SystemLOINC
Display nameDid diabetes occur only during pregnancy [PhenX]
DescriptionDid diabetes occur only during pregnancy
Short nameDiabetes women pregnancy PhenX
ComponentDid diabetes occur only during pregnancy
PropertyFind
TimingPt
System (specimen)^Patient
ScaleOrd
MethodPhenX
ClassPHENX
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.65

Part names

Did diabetes occur only during pregnancyFindPt^PatientOrdPhenXFindingPoint 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 66157-9 | HealthAssure