LOINCActiveBoth

LOINC Code 68123-9: Circulating tumor cells.prostate (Bld) [#/Vol]

68123-9 is a LOINC code used to identify Circulating tumor cells.prostate (Bld) [#/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 Circulating tumor cells.prostate. It is commonly used with the system or sample type Bld.

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 Circulating tumor cells.prostate. It is commonly used with the system or sample type Bld.

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

  • Circulating tumor cells.prostate [#/volume] in Blood
  • Circulating tumor cells.prostate
  • #; ABS; absolute; absolutes; Blood; Cell; Cellularity; Chemistry; Circ; Circ tumor; Circ Tumor cells; Circulating cancer cells; Circulating epithelial cells; Cnt; Count; Count/volume; CT; CTC; CTC.prostate; EpCAM+Ck-PE+PAPI+CD45- cells; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; TC; WB; Whole blood

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

Circulating tumor cells.prostate (Bld) [#/Vol]Circulating tumor cells.prostate [#/volume] in BloodCTC.prostate # BldCirculating tumor cells.prostateCHEMCirculating tumor cells.prostate, BloodNCnc

Frequently asked questions

Code details

Code68123-9
SystemLOINC
Display nameCirculating tumor cells.prostate (Bld) [#/Vol]
DescriptionCirculating tumor cells.prostate
Short nameCTC.prostate # Bld
ComponentCirculating tumor cells.prostate
PropertyNCnc
TimingPt
System (specimen)Bld
ScaleQn
ClassCHEM
Example unitsCTCs/7.5 mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.73

Consumer names

Circulating tumor cells.prostate, Blood

Part names

Circulating tumor cells.prostateNCncPtBldQnNumber ConcentrationPoint in time (spot)Blood

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 68123-9 | HealthAssure