LOINCActiveObservation

LOINC Code 106738-8: Brain weight/liver weight (fetus) [Mass ratio]

106738-8 is a LOINC code used to identify Brain weight/liver weight (fetus) [Mass ratio] 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 Brain weight/liver weight. It is commonly used with the system or sample type ^Fetus.

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 Brain weight/liver weight. It is commonly used with the system or sample type ^Fetus.

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

What it does not mean

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

Key facts

  • Brain weight/liver weight [Mass Ratio] of Fetus
  • Brain weight/liver weight
  • Brain/liver weight; Fetal; Mass concentration ratio; Mass ratio; MCRto; Pathology; 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

Brain weight/liver weight (fetus) [Mass ratio]Brain weight/liver weight [Mass Ratio] of FetusBrain weight/liver weight FetusBrain weight/liver weightPATHFetal Brain weight/liver weightMRto

Frequently asked questions

Code details

Code106738-8
SystemLOINC
Display nameBrain weight/liver weight (fetus) [Mass ratio]
DescriptionBrain weight/liver weight
Short nameBrain weight/liver weight Fetus
ComponentBrain weight/liver weight
PropertyMRto
TimingPt
System (specimen)^Fetus
ScaleQn
ClassPATH
Example units{ratio}
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.79
Last changed2.79

Consumer names

Fetal Brain weight/liver weight

Part names

Brain weight/liver weightMRtoPt^FetusQnMass RatioPoint 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.