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 49318-9: AFP interpretation Nar (Amn fld) [Interp]

Name: LOINC Code 49318-9: AFP interpretation Nar (Amn fld) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.939Z

49318-9 is a LOINC code used to identify AFP interpretation Nar (Amn fld) [Interp] 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 Alpha-1-Fetoprotein interpretation. 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 Alpha-1-Fetoprotein interpretation. 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

What it does not mean

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

Key facts

Alpha-1-Fetoprotein interpretation in Amniotic fluid Narrative
Alpha-1-Fetoprotein interpretation
A1; AF; AFAFP; AFP; AFP Interp; Alfa; Alpha fetoprotein; Alphafetoprotein; Amn; Amn fl; Amnio; Amniotic flu; Amniotic fluid; Chemistry; Feto; Gyn; Gynecology; i; Impression; Impression/interpretation of study; Impressions; Interp; Interpret; Interpretation; Interpt; Intrp; Narrative; OB; ObGyn; Obstetrics; Point in time; Random; Report; Tumor marker

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

AFP interpretation Nar (Amn fld) [Interp]Alpha-1-Fetoprotein interpretation in Amniotic fluid NarrativeAFP Interp Amn-ImpAlpha-1-Fetoprotein interpretationCHEMAlpha-fetoprotein interpretation, Amniotic fluidImp

Frequently asked questions

Code details

Code49318-9

SystemLOINC

Display nameAFP interpretation Nar (Amn fld) [Interp]

DescriptionAlpha-1-Fetoprotein interpretation

Short nameAFP Interp Amn-Imp

ComponentAlpha-1-Fetoprotein interpretation

PropertyImp

TimingPt

System (specimen)Amnio fld

ScaleNar

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.21

Last changed2.73

Consumer names

Alpha-fetoprotein interpretation, Amniotic fluid

Part names

Alpha-1-Fetoprotein interpretationImpPtAmnio fldNarImpression/interpretation of studyPoint 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.