LOINCActive

LOINC Code 65490-5: About how much weight did you lose [Mass] [CIDI-SF]

65490-5 is a LOINC code used to identify About how much weight did you lose [Mass] [CIDI-SF] 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 About how much weight did you lose. 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 About how much weight did you lose. 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: CIDI-SF

What it does not mean

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

Key facts

  • About how much weight did you lose [Mass] [CIDI-SF]
  • About how much weight did you lose
  • PhenX; Point in time; QNT; Quan; Quant; Quantitative; Random; Weight loss amount; 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

About how much weight did you lose [Mass] [CIDI-SF]Weight loss amount CIDI-SFAbout how much weight did you losePHENXMassPt^Patient

Frequently asked questions

Code details

Code65490-5
SystemLOINC
Display nameAbout how much weight did you lose [Mass] [CIDI-SF]
DescriptionAbout how much weight did you lose
Short nameWeight loss amount CIDI-SF
ComponentAbout how much weight did you lose
PropertyMass
TimingPt
System (specimen)^Patient
ScaleQn
MethodCIDI-SF
ClassPHENX
Example unitslb
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.65

Part names

About how much weight did you loseMassPt^PatientQnCIDI-SFPoint 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.