11982-6
LOINC Code
| LOINC code | 11982-6 | |
|---|---|---|
| name | ||
| description | Derived from measures of occipital-frontal diameter and transaxial diameter assuming shape is an ellipse. The outer to outer transaxial diameter is used. This estimate should be closer to that measured with ellipse overlay or by tracing. | |
| status | ACTIVE | |
Fully-Specified Name | ||
| component | Perimeter | |
| property | Len = Length | |
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | |
| system | Head^Fetus | |
| scale | Qn = 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 | |
| method | US.derived from OFD&O-O TD | |
Additional Names | ||
| short name | Brain; by OFD+O-O TD; Circum; Circumference; Cranial; Cranium; der US; Echoencephalogram; Echoencephalography; Echography; Fetal; Gyn; Gynecology; HC; Head Circumference; Intracranial; Length; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obs | |
Basic Attributes | ||
| class | OB.US | |
| type | 2 Clinical | |
| order vs. observation | Fet Head Circum | |
| example UCUM units | cm The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | |
History/Usage | ||
| first released | ||
| last updated | 2.48 | |
| last change type | MAJ - change to name field other than Component; | |
| change reason | cm | |
Related Names | ||
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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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