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 50964-6: Liley Zone Spectrophotometry Ql (Amn fld)

Name: LOINC Code 50964-6: Liley Zone Spectrophotometry Ql (Amn fld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:35.011Z

50964-6 is a LOINC code used to identify Liley Zone Spectrophotometry Ql (Amn fld) 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 Liley Zone. It is commonly used with the system or sample type Amnio fld.

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 Liley Zone. It is commonly used with the system or sample type Amnio fld.

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: Spectrophotometry

What it does not mean

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

Key facts

Liley Zone [Presence] in Amniotic fluid by Spectrophotometry
Liley Zone
AF; Amn; Amn fl; Amnio; Amniotic flu; Amniotic fluid; Chemistry; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen

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

Liley Zone Spectrophotometry Ql (Amn fld)Liley Zone [Presence] in Amniotic fluid by SpectrophotometryLiley Zone Amn Ql SpectLiley ZoneCHEMLiley zone, Amniotic fluidPrThr

Frequently asked questions

Code details

Code50964-6

SystemLOINC

Display nameLiley Zone Spectrophotometry Ql (Amn fld)

DescriptionLiley Zone

Short nameLiley Zone Amn Ql Spect

ComponentLiley Zone

PropertyPrThr

TimingPt

System (specimen)Amnio fld

ScaleOrd

MethodSpectrophotometry

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.56

Consumer names

Liley zone, Amniotic fluid

Part names

Liley ZonePrThrPtAmnio fldOrdSpectrophotometryPresence or ThresholdPoint in time (spot)Amniotic fluid

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.