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 38555-9: Spermatozoa.head Motile w IgG/Spermatozoa Immunobead (Sem)

Name: LOINC Code 38555-9: Spermatozoa.head Motile w IgG/Spermatozoa Immunobead (Sem)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:26.145Z

38555-9 is a LOINC code used to identify Spermatozoa.head Motile w IgG/Spermatozoa Immunobead (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.head.motile with IgG/Spermatozoa. 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.head.motile with IgG/Spermatozoa. 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
Method: Immunobead

What it does not mean

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

Key facts

Spermatozoa.head Motile w IgG/Spermatozoa in Semen by Immunobead
Spermatozoa.head.motile with IgG/Spermatozoa
Ejaculate; FERTILITY TESTING; Genitourinary; GU; IBA; IBT; Immune globulin G; Immunoglobulin G; Mot; Number fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Sem; Seminal fluid; Smn; SMPLS; Sperm; Sperm Head; Sperm.head w IgG; 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.head Motile w IgG/Spermatozoa Immunobead (Sem)Spermatozoa.head Motile w IgG/Spermatozoa in Semen by ImmunobeadSperm.head w IgG NFr Smn IBTSpermatozoa.head.motile with IgG/SpermatozoaFERTSpermatozoa.head Motile W IgG/Spermatozoa, SemenNFr

Frequently asked questions

Code details

Code38555-9

SystemLOINC

Display nameSpermatozoa.head Motile w IgG/Spermatozoa Immunobead (Sem)

DescriptionSpermatozoa.head.motile with IgG/Spermatozoa

Short nameSperm.head w IgG NFr Smn IBT

ComponentSpermatozoa.head.motile with IgG/Spermatozoa

PropertyNFr

TimingPt

System (specimen)Semen

ScaleQn

MethodImmunobead

ClassFERT

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.14

Last changed2.79

Consumer names

Spermatozoa.head Motile W IgG/Spermatozoa, Semen

Part names

Spermatozoa.head.motile with IgG/SpermatozoaNFrPtSemenQnImmunobeadNumber 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.