11921-4
ClinicalGestational age estimated from Femur length on US by Hansmann 1985 method
Definition
Table 7.17 in this reference gives predicted mean, 5th and 95th %-ile femur lengths in mm for gestational ages 12 weeks to 40 weeks rather than estimating gestational age from femur length.
LOINC 6-Axis Classification
Component
Gestational age
Property
Time
Time Aspect
Pt
System
^Fetus
Scale Type
Qn
Method Type
US+Estimated from FL.Hansmann 1985
Details
Class
OB.US
Order/Observation
Observation
Short Name
GA from FL.Hansmann85
Related Names
Frequently Asked Questions
What is LOINC code 11921-4?
LOINC code 11921-4 identifies "Gestational age estimated from Femur length on US by Hansmann 1985 method". Table 7.17 in this reference gives predicted mean, 5th and 95th %-ile femur lengths in mm for gestational ages 12 weeks to 40 weeks rather than estimating gestational age from femur length.
What does 11921-4 measure?
This code measures Gestational age in ^Fetus. It belongs to the OB.US class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.