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.

LOINCActiveBoth

LOINC Code 34619-7: Complement C1 esterase inhibitor.functional (Body fld) [Mass/Vol]

Name: LOINC Code 34619-7: Complement C1 esterase inhibitor.functional (Body fld) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:22.385Z

34619-7 is a LOINC code used to identify Complement C1 esterase inhibitor.functional (Body fld) [Mass/Vol] 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 Complement C1 esterase inhibitor.functional. It is commonly used with the system or sample type Body 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 Complement C1 esterase inhibitor.functional. It is commonly used with the system or sample type Body 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: Both

What it does not mean

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

Key facts

Complement C1 esterase inhibitor.functional [Mass/volume] in Body fluid
Complement C1 esterase inhibitor.functional
B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; C1 inactivator; C1 inhibiting factor; C1INA; C1INH; C1-INH; C1INH Functional; Comp; Complmt; Fl; Fld; FLU; Fluid; HEMATOLOGY/CELL COUNTS; Inhib; Inhibit; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; 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

Complement C1 esterase inhibitor.functional (Body fld) [Mass/Vol]Complement C1 esterase inhibitor.functional [Mass/volume] in Body fluidC1INH Functional Fld-mCncComplement C1 esterase inhibitor.functionalHEM/BCComplement C1 Esterase Inhibitor.functional, Body fluidMCnc

Frequently asked questions

Code details

Code34619-7

SystemLOINC

Display nameComplement C1 esterase inhibitor.functional (Body fld) [Mass/Vol]

DescriptionComplement C1 esterase inhibitor.functional

Short nameC1INH Functional Fld-mCnc

ComponentComplement C1 esterase inhibitor.functional

PropertyMCnc

TimingPt

System (specimen)Body fld

ScaleQn

ClassHEM/BC

Example unitsmg/dL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.11

Last changed2.44

Consumer names

Complement C1 Esterase Inhibitor.functional, Body fluid

Part names

Complement C1 esterase inhibitor.functionalMCncPtBody fldQnMass ConcentrationPoint in time (spot)Body 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.