LOINCActiveObservation

LOINC Code 73708-0: Body fat [Mass] Calculated

73708-0 is a LOINC code used to identify Body fat [Mass] Calculated 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 fat mass. 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 fat mass. 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: Observation
  • Method: Calculated

What it does not mean

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

Key facts

Body fat [Mass] Calculated
Body fat mass
Body fat mass is calculated by multiplying a patient's body weight times their body fat percentage (see [LOINC41982-0] and [LOINC: 77233-5]). Body fat percentage can be measured by several techniques, including underwater weighing, Dual energy X-ray absorptiometry (DEXA), bioelectrical impedance analysis (BIA), and skinfold estimation (pinch test). Note that this code does not represent body mass index (BMI), which is typically calculated by dividing a person's body mass divided by the square of their height. LOINC has several codes for BMI.
bod; Bodies; BODY WEIGHT.ATOM; Calc; Calculation; Point in time; QNT; Quan; Quant; Quantitative; Random

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 fat [Mass] CalculatedBody fat CalcBody fat massBDYWGT.ATOMMassPt^Patient

Frequently asked questions

Code details

Code73708-0
SystemLOINC
Display nameBody fat [Mass] Calculated
DescriptionBody fat mass
Short nameBody fat Calc
ComponentBody fat mass
PropertyMass
TimingPt
System (specimen)^Patient
ScaleQn
MethodCalculated
ClassBDYWGT.ATOM
Example unitskg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.44
Last changed2.73

Part names

Body fat massMassPt^PatientQnCalculatedPoint 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 73708-0 | HealthAssure