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 56071-4: Deprecated PhenX measure - mid-upper arm circumference

Name: LOINC Code 56071-4: Deprecated PhenX measure - mid-upper arm circumference
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:37.766Z

56071-4 is a LOINC code used to identify Deprecated PhenX measure - mid-upper arm circumference 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 PhenX measure - mid upper arm circumference. 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 PhenX measure - mid upper arm circumference. 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: DEPRECATED
Method: PhenX

What it does not mean

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

Key facts

Deprecated PhenX measure - mid-upper arm circumference
PhenX measure - mid upper arm circumference
Measurement of the circumference of the mid-upper arm. Mid-upper arm circumference is a recognized and important anthropometric measure in children and in pregnant women to assess their nutritional status.
Girth; Pan; Panel; PANEL.PHENX; Panl; Pnl; Point in time; Random; Up; Upper extremity

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

Deprecated PhenX measure - mid-upper arm circumferencePhenX measure - mid upper arm circumferencePANEL.PHENX-Pt^PatientPhenX

Frequently asked questions

Code details

Code56071-4

SystemLOINC

Display nameDeprecated PhenX measure - mid-upper arm circumference

DescriptionPhenX measure - mid upper arm circumference

ComponentPhenX measure - mid upper arm circumference

Property-

TimingPt

System (specimen)^Patient

Scale-

MethodPhenX

ClassPANEL.PHENX

StatusDEPRECATED

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.46

Part names

PhenX measure - mid upper arm circumference-Pt^PatientPhenXPhenX measure - mid-upper arm circumferencePoint 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.