LOINCActiveBoth

LOINC Code 12735-7: Collagen Ab Qn (U)

12735-7 is a LOINC code used to identify Collagen Ab Qn (U) 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 Collagen Ab. 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 Collagen Ab. 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

  • Collagen Ab [Units/volume] in Urine
  • Collagen Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; 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

Collagen Ab Qn (U)Collagen Ab [Units/volume] in UrineCollagen Ab Ur-aCncCollagen AbSEROCollagen antibody, UrineACnc

Frequently asked questions

Code details

Code12735-7
SystemLOINC
Display nameCollagen Ab Qn (U)
DescriptionCollagen Ab
Short nameCollagen Ab Ur-aCnc
ComponentCollagen Ab
PropertyACnc
TimingPt
System (specimen)Urine
ScaleQn
ClassSERO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.69

Consumer names

Collagen antibody, Urine

Part names

Collagen AbACncPtUrineQnArbitrary 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 12735-7 | HealthAssure