LOINCActiveObservation

LOINC Code 47226-6: Fetal lung maturity (Amn fld) [Interp]

47226-6 is a LOINC code used to identify Fetal lung maturity (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 Fetal lung maturity. 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 Fetal lung maturity. 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

  • Fetal lung maturity [Interpretation] in Amniotic fluid
  • Fetal lung maturity
  • AF; Amn; Amn fl; Amnio; Amniotic flu; Amniotic fluid; Chemistry; Fetal lung maturity; FLM; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Nominal; Point in time; Random

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 lung maturity (Amn fld) [Interp]Fetal lung maturity [Interpretation] in Amniotic fluidFLM Amn-ImpFetal lung maturityCHEMFetal lung maturity, Amniotic fluidImp

Frequently asked questions

Code details

Code47226-6
SystemLOINC
Display nameFetal lung maturity (Amn fld) [Interp]
DescriptionFetal lung maturity
Short nameFLM Amn-Imp
ComponentFetal lung maturity
PropertyImp
TimingPt
System (specimen)Amnio fld
ScaleNom
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.73

Consumer names

Fetal lung maturity, Amniotic fluid

Part names

Fetal lung maturityImpPtAmnio fldNomImpression/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.

LOINC Code 47226-6 | HealthAssure