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 63493-1: Maternal grandmother birthplace [PhenX]

Name: LOINC Code 63493-1: Maternal grandmother birthplace [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:42.802Z

63493-1 is a LOINC code used to identify Maternal grandmother birthplace [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 Where was your mother's mother born. 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 Where was your mother's mother born. 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

Maternal grandmother birthplace [PhenX]
Where was your mother's mother born
If birthplace of maternal grandmother is captured, birthplace of mother, birthplace of father, birthplace of paternal grandmother, birthplace of maternal grandfather, birthplace of paternal grandfather should also be captured to provide additional information about the respondent's ancestry.
Finding; Findings; Maternal grandmother birthplace; Nominal; Point in time; Random; S prime

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

Maternal grandmother birthplace [PhenX]Maternal grandmother birthplaceWhere was your mother's mother bornPHENXFindPt^Patient

Frequently asked questions

Code details

Code63493-1

SystemLOINC

Display nameMaternal grandmother birthplace [PhenX]

DescriptionWhere was your mother's mother born

Short nameMaternal grandmother birthplace

ComponentWhere was your mother's mother born

PropertyFind

TimingPt

System (specimen)^Patient

ScaleNom

MethodPhenX

ClassPHENX

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.65

Part names

Where was your mother's mother bornFindPt^PatientNomPhenXMaternal grandmother birthplaceFindingPoint 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.