LOINCActiveObservation

LOINC Code 107160-4: Phase angle Xc/R [Ratio] Bioelectrical impedance analysis

107160-4 is a LOINC code used to identify Phase angle Xc/R [Ratio] Bioelectrical impedance analysis 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 Phase angle Xc/R. 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 Phase angle Xc/R. 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: BIA

What it does not mean

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

Key facts

  • Phase angle Xc/R [Ratio] Bioelectrical impedance analysis
  • Phase angle Xc/R
  • Phase angel (PhA) is obtained as a ratio between the raw measures resistance (R) and reactance (Xc) from bioelectrical impedance analysis (BIA). PhA has been considered a predictor of disease severity in clinical conditions, such as malnutrition and increased nutritional risk
  • Point in time; QNT; Quan; Quant; Quantitative; R prime; Random; Ratios; Right; 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

Phase angle Xc/R [Ratio] Bioelectrical impedance analysisPhase angle Xc/R BIAPhase angle Xc/RNUTRITION&DIETETICSRatioPt^Patient

Frequently asked questions

Code details

Code107160-4
SystemLOINC
Display namePhase angle Xc/R [Ratio] Bioelectrical impedance analysis
DescriptionPhase angle Xc/R
Short namePhase angle Xc/R BIA
ComponentPhase angle Xc/R
PropertyRatio
TimingPt
System (specimen)^Patient
ScaleQn
MethodBIA
ClassNUTRITION&DIETETICS
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.81
Last changed2.81

Part names

Phase angle Xc/RRatioPt^PatientQnBIAPoint in time (spot)Bioelectrical impedance analysis

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 107160-4 | HealthAssure