LOINCActiveBoth

LOINC Code 89270-3: Body mass index (BMI) [Ratio] Estimated

89270-3 is a LOINC code used to identify Body mass index (BMI) [Ratio] 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 Body mass index. 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 Body mass index. 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
  • Order vs observation: Both
  • Method: Estimated

What it does not mean

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

Key facts

  • Body mass index (BMI) [Ratio] Estimated
  • Body mass index
  • Estimated BMI may be used in urgent or emergent situations in which height and weight cannot be measured.
  • BMI; bod; Bodies; BODY WEIGHT.ATOM; Est; estimation; Point in time; QNT; Quan; Quant; Quantitative; Quetelet index; Random; Ratios; Rto

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

Body mass index (BMI) [Ratio] EstimatedBMI EstBody mass indexBDYWGT.ATOMRatioPt^Patient

Frequently asked questions

Code details

Code89270-3
SystemLOINC
Display nameBody mass index (BMI) [Ratio] Estimated
DescriptionBody mass index
Short nameBMI Est
ComponentBody mass index
PropertyRatio
TimingPt
System (specimen)^Patient
ScaleQn
MethodEstimated
ClassBDYWGT.ATOM
Example unitskg/m2
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.64
Last changed2.73

Part names

Body mass indexRatioPt^PatientQnEstimatedBody mass index (BMI)Point 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 89270-3 | HealthAssure