LOINCActive

LOINC Code 8340-2: Dry body weight Estimated

8340-2 is a LOINC code used to identify Dry body weight Estimated 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 Dry body weight. 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 Dry body weight. 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: Estimated

What it does not mean

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

Key facts

Dry body weight Estimated
Dry body weight
Relating to hemodialysisDry weight is the lowest weight a patient can tolerate without the development of symptoms or hypotension.
Bdy weight; bod; Bodies; BODY WEIGHT.MOLEC; Dry weight; Est; estimation; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Dry body weight EstimatedDry weight EstDry body weightBDYWGT.MOLECMassPt^Patient

Frequently asked questions

Code details

Code8340-2
SystemLOINC
Display nameDry body weight Estimated
DescriptionDry body weight
Short nameDry weight Est
ComponentDry body weight
PropertyMass
TimingPt
System (specimen)^Patient
ScaleQn
MethodEstimated
ClassBDYWGT.MOLEC
Example unitskg;lb
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(2)
Last changed2.48

Part names

Dry body weightMassPt^PatientQnEstimatedPoint 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 8340-2 | HealthAssure