12015-4

LOINC Code


LOINC code12015-4
name
descriptionFor use when the System is Patient or when the System is Fetus or Other but the context is supplied by DICOM Supplement 23-Structured Reporting, Observation Subject context Module (C.6.12).
statusDEPRECATED
Replacements

alternatives to this code:

12014-7

Fully-Specified Name

componentResistivity index
propertyVelRto  =  Velocity Ratio
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemCerebral artery middle^Patient
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodDoppler.calculated

Additional Names

short nameArt; Calc; Calculation; Cereb; Cerebral a Middle; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; RI; Velocity ratio

Basic Attributes

classOB.US
type2  Clinical
order vs. observationDeprecatedResis
formula (readable)Resistivity Index = (blood flow.systolic.max - blood flow.diastolic.min) / blood flow.systolic.max

History/Usage

first released
last updated2.36
last change typeDEL  - delete (deprecate)

Related Names



Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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