LOINC

LOINC Code 10556-9: Adenosine triphosphatase (Smpls) [Catalytic activity/Vol]

10556-9 is a LOINC code used to identify Adenosine triphosphatase (Smpls) [Catalytic activity/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 Adenosine triphosphatase. It is commonly used with the system or sample type Smpls.

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 Adenosine triphosphatase. It is commonly used with the system or sample type Smpls.

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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated Adenosine triphosphatase [Enzymatic activity/volume] in Seminal plasma
  • Adenosine triphosphatase
  • ADO; ANED; ATPase; Catalytic Concentration; FERTILITY TESTING; Genitourinary; GU; Medication stress; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Adenosine triphosphatase (Smpls) [Catalytic activity/Vol]Deprecated Adenosine triphosphatase [Enzymatic activity/volume] in Seminal plasmaDeprecated ATPase-cCncAdenosine triphosphataseFERTAdenosine triphosphatase, SmplsCCnc

Frequently asked questions

Code details

Code10556-9
SystemLOINC
Display nameAdenosine triphosphatase (Smpls) [Catalytic activity/Vol]
DescriptionAdenosine triphosphatase
Short nameDeprecated ATPase-cCnc
ComponentAdenosine triphosphatase
PropertyCCnc
TimingPt
System (specimen)Smpls
ScaleQn
ClassFERT
Example unitsmkat/L
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.70

Consumer names

Adenosine triphosphatase, Smpls

Part names

Adenosine triphosphataseCCncPtSmplsQnCatalytic ConcentrationPoint 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.

LOINC Code 10556-9 | HealthAssure