What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 11628-5: Fetal Head Binocular distance estimated from Biparietal diameter on US

Name: LOINC Code 11628-5: Fetal Head Binocular distance estimated from Biparietal diameter on US
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:22.972Z

11628-5 is a LOINC code used to identify Fetal Head Binocular distance estimated from Biparietal diameter on US 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 Binocular distance. It is commonly used with the system or sample type Head^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 Binocular distance. It is commonly used with the system or sample type Head^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
Method: US+Estimated from BPD

What it does not mean

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

Key facts

Fetal Head Binocular distance estimated from Biparietal diameter on US
Binocular distance
Predicted from biparietal diameter measurement
Binoc D; Biparietal diameter; Brain; Cranial; Cranium; Echoencephalogram; Echoencephalography; Echography; Est; estimation; Fetal; Gyn; Gynecology; Intracranial; Length; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Outer orbital diameter; Outer orbital distance; Outer orbital width; Point in time; predicted; QNT; Quan; Quant; Quantitative; Random; Skull; Sonogram; Sonograph; Sonography; ULS; Ultrasound

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

Fetal Head Binocular distance estimated from Biparietal diameter on USFet Head Binoc D from BPDBinocular distanceOB.USLenPtHead^fetus

Frequently asked questions

Code details

Code11628-5

SystemLOINC

Display nameFetal Head Binocular distance estimated from Biparietal diameter on US

DescriptionBinocular distance

Short nameFet Head Binoc D from BPD

ComponentBinocular distance

PropertyLen

TimingPt

System (specimen)Head^Fetus

ScaleQn

MethodUS+Estimated from BPD

ClassOB.US

Example unitsmm

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0j-a

Last changed2.52

Part names

Binocular distanceLenPtHead^fetusQnUS+Estimated from BPDLengthPoint in time (spot)Ultrasound+Estimated from BPD

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.