LOINCActive

LOINC Code 45735-8: Weight loss [Minimum Data Set]

45735-8 is a LOINC code used to identify Weight loss [Minimum Data Set] 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 Weight loss. 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 Weight loss. 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: ACTIVE
  • Method: MDS

What it does not mean

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

Key facts

  • Weight loss [Minimum Data Set]
  • Weight loss
  • 5% or more in last 30 days; or 10% or more in last 180 days
  • Finding; Findings; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Survey; SURVEY.MDS; Wt

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

Weight loss [Minimum Data Set]Weight lossSURVEY.MDSFindPt^PatientOrd

Frequently asked questions

Code details

Code45735-8
SystemLOINC
Display nameWeight loss [Minimum Data Set]
DescriptionWeight loss
ComponentWeight loss
PropertyFind
TimingPt
System (specimen)^Patient
ScaleOrd
MethodMDS
ClassSURVEY.MDS
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.50

Part names

Weight lossFindPt^PatientOrdMDSFindingPoint in time (spot)Minimum Data Set

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 45735-8 | HealthAssure