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 111579-9: Liver fibrosis progression Calculated by FIB4 Nar (S/Bld) [Interp]

Name: LOINC Code 111579-9: Liver fibrosis progression Calculated by FIB4 Nar (S/Bld) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:21.941Z

111579-9 is a LOINC code used to identify Liver fibrosis progression Calculated by FIB4 Nar (S/Bld) [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 Liver fibrosis progression. It is commonly used with the system or sample type Ser/Bld.

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 Liver fibrosis progression. It is commonly used with the system or sample type Ser/Bld.

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: Calculated.FIB4

What it does not mean

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

Key facts

Liver fibrosis progression [Interpretation] in Serum or Blood by Calculated by FIB4 Narrative
Liver fibrosis progression
Blood; Calc; Calc.FIB4; Calculation; Chemistry; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; liver FIB prog; Narrative; Point in time; Random; Report; SerBld; Serum; Serum or whole blood; SR; WB; Whole blood

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

Liver fibrosis progression Calculated by FIB4 Nar (S/Bld) [Interp]Liver fibrosis progression [Interpretation] in Serum or Blood by Calculated by FIB4 Narrativeliver FIB prog SerBld Calc.FIB4-ImpLiver fibrosis progressionCHEMInterpretation of Liver fibrosis progression test result, BloodImp

Frequently asked questions

Code details

Code111579-9

SystemLOINC

Display nameLiver fibrosis progression Calculated by FIB4 Nar (S/Bld) [Interp]

DescriptionLiver fibrosis progression

Short nameliver FIB prog SerBld Calc.FIB4-Imp

ComponentLiver fibrosis progression

PropertyImp

TimingPt

System (specimen)Ser/Bld

ScaleNar

MethodCalculated.FIB4

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.82

Last changed2.82

Consumer names

Interpretation of Liver fibrosis progression test result, Blood

Part names

Liver fibrosis progressionImpPtSer/BldNarCalculated.FIB4Impression/interpretation of studyPoint in time (spot)Serum or BloodCalculated by FIB4

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.