LOINCBoth

LOINC Code 35225-2: Testosterone Free [Mass or moles/Vol]

35225-2 is a LOINC code used to identify Testosterone Free [Mass or moles/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 Testosterone.free. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Testosterone.free. It is commonly used with the system or sample type Ser/Plas.

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: DISCOURAGED
  • Order vs observation: Both

What it does not mean

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

Key facts

  • Testosterone Free [Mass or Moles/volume] in Serum or Plasma
  • Testosterone.free
  • Chemistry; FR; Level; Non-protein bound; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Testo; Testos; Testost; Testost Free; Testosterone.unconjugated

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

Testosterone Free [Mass or moles/Vol]Testosterone Free [Mass or Moles/volume] in Serum or PlasmaTestost Free SerPl-msCncTestosterone.freeCHEMFree testosterone, BloodMSCnc

Frequently asked questions

Code details

Code35225-2
SystemLOINC
Display nameTestosterone Free [Mass or moles/Vol]
DescriptionTestosterone.free
Short nameTestost Free SerPl-msCnc
ComponentTestosterone.free
PropertyMSCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
StatusDISCOURAGED
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.11
Last changed2.42

Consumer names

Free testosterone, Blood

Part names

Testosterone.freeMSCncPtSer/PlasQnTestosterone FreeMass or Substance ConcentrationPoint in time (spot)Serum or Plasma

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 35225-2 | HealthAssure