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 57446-7: Spermatozoa Immotile/Spermatozoa post concentration (Sem)

Name: LOINC Code 57446-7: Spermatozoa Immotile/Spermatozoa post concentration (Sem)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:38.756Z

57446-7 is a LOINC code used to identify Spermatozoa Immotile/Spermatozoa post concentration (Sem) 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 Spermatozoa.immotile/Spermatozoa^post concentration. It is commonly used with the system or sample type Semen.

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 Spermatozoa.immotile/Spermatozoa^post concentration. It is commonly used with the system or sample type Semen.

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

Spermatozoa Immotile/Spermatozoa in Semen --post concentration
Spermatozoa.immotile/Spermatozoa^post concentration
After; Ejaculate; FERTILITY TESTING; Genitourinary; GU; immobile; nonmotile; Number fraction; p conc; Percent; Point in time; post washing; PST; QNT; Quan; Quant; Quantitative; Random; Sem; Seminal fluid; Smn; SMPLS; Sperm; Sperm Immotile; Spermatozoa.non-motile; URO; Urology

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

Spermatozoa Immotile/Spermatozoa post concentration (Sem)Spermatozoa Immotile/Spermatozoa in Semen --post concentrationSperm Immotile p conc NFr SmnSpermatozoa.immotile/Spermatozoa^post concentrationFERTSpermatozoa immotile/Spermatozoa - after Concentration, SemenNFr

Frequently asked questions

Code details

Code57446-7

SystemLOINC

Display nameSpermatozoa Immotile/Spermatozoa post concentration (Sem)

DescriptionSpermatozoa.immotile/Spermatozoa^post concentration

Short nameSperm Immotile p conc NFr Smn

ComponentSpermatozoa.immotile/Spermatozoa^post concentration

PropertyNFr

TimingPt

System (specimen)Semen

ScaleQn

ClassFERT

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.79

Consumer names

Spermatozoa immotile/Spermatozoa - after Concentration, Semen

Part names

Spermatozoa.immotile/Spermatozoa^post concentrationNFrPtSemenQnNumber FractionPoint in time (spot)

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.