LOINCActiveBoth

LOINC Code 35478-7: Cytosol aminopeptidase (24H U) [Catalytic activity/Time]

35478-7 is a LOINC code used to identify Cytosol aminopeptidase (24H U) [Catalytic activity/Time] 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 Cytosol aminopeptidase. It is commonly used with the system or sample type Urine.

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 Cytosol aminopeptidase. It is commonly used with the system or sample type Urine.

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

  • Cytosol aminopeptidase [Enzymatic activity/time] in 24 hour Urine
  • Cytosol aminopeptidase
  • 1 day; 24 hours; 24HR; Amiopep; Catalytic Rate; Chemistry; cRate; Cytosol AP; Leucine amino peptidase; Leucine aminopeptidase; QNT; Quan; Quant; Quantitative; UA; UR; Urn

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

Cytosol aminopeptidase (24H U) [Catalytic activity/Time]Cytosol aminopeptidase [Enzymatic activity/time] in 24 hour UrineCytosol AP 24h Ur-cRateCytosol aminopeptidaseCHEMCytosol aminopeptidase, UrineCRat

Frequently asked questions

Code details

Code35478-7
SystemLOINC
Display nameCytosol aminopeptidase (24H U) [Catalytic activity/Time]
DescriptionCytosol aminopeptidase
Short nameCytosol AP 24h Ur-cRate
ComponentCytosol aminopeptidase
PropertyCRat
Timing24H
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsU/d
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.13
Last changed2.70

Consumer names

Cytosol aminopeptidase, Urine

Part names

Cytosol aminopeptidaseCRat24HUrineQnCatalytic Rate24 hours

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.