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.

LOINCObservation

LOINC Code 70950-1: Residual renal function testing performed [ESRD]

Name: LOINC Code 70950-1: Residual renal function testing performed [ESRD]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:49.466Z

70950-1 is a LOINC code used to identify Residual renal function testing performed [ESRD] 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 Residual renal function testing performed. 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 Residual renal function testing performed. 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
Order vs observation: Observation
Method: ESRD

What it does not mean

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

Key facts

Residual renal function testing performed [ESRD]
Residual renal function testing performed
Indicates if Residual Renal Function for Hemodialysis patients has been received from the lab
End Stage Renal Disease; ESRD survey; FCN; Finding; Findings; Func; Funct; Kidney; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Survey

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

Residual renal function testing performed [ESRD]Residual renal function testing performedSURVEY.ESRDFindPt^PatientOrd

Frequently asked questions

Code details

Code70950-1

SystemLOINC

Display nameResidual renal function testing performed [ESRD]

DescriptionResidual renal function testing performed

ComponentResidual renal function testing performed

PropertyFind

TimingPt

System (specimen)^Patient

ScaleOrd

MethodESRD

ClassSURVEY.ESRD

StatusTRIAL

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.40

Last changed2.67

Part names

Residual renal function testing performedFindPt^PatientOrdESRDFindingPoint in time (spot)End Stage Renal Disease

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.