LOINC Code 73965-6: Body muscle mass/Body weight Measured

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 muscle mass/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
• Order vs observation: Both
• Method: Measured

What it does not mean

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

Key facts

• Body muscle mass/Body weight Measured
• Body muscle mass/body weight
• Body muscle percentage is measured by a variety of methods, including bio-impedance analysis (BIA) (e.g. Tanita MC-180 MA). Body muscle percentage is equal to a patient's body muscle mass divided by total body weight. This code represents muscle mass only. Other instruments or methods may be used to measure lean body weight (e.g. see LOINCs 8342-8 and 8343-6), which includes muscle, bone (skeletal) and organs - everything but body fat (e.g. LOINC 41982-0).
• Bdy weight; bod; Bodies; body muscle percentage; BODY WEIGHT.MOLEC; BW; Mass Fraction; Musc; Muscl; Percent; 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

Frequently asked questions