LOINCActiveObservation

LOINC Code 21133-4: Calcitonin 2 Min post 0.5 ug/kg pentagastrin IV [Mass/Vol]

21133-4 is a LOINC code used to identify Calcitonin 2 Min post 0.5 ug/kg pentagastrin IV [Mass/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 Calcitonin^2M post 0.5 ug/kg pentagastrin IV. It is commonly used with the system or sample type Ser/Plas.

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 Calcitonin^2M post 0.5 ug/kg pentagastrin IV. 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: ACTIVE
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Calcitonin [Mass/volume] in Serum or Plasma --2 minutes post 0.5 ug/kg pentagastrin IV
  • Calcitonin^2M post 0.5 ug/kg pentagastrin IV
  • 2M p 0.5 ug/kg Pg IV; After; CHEMISTRY.CHALLENGE TESTING; CT; Level; Mass concentration; mcg; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Thyrocalcitonin; Tumor marker

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

Calcitonin 2 Min post 0.5 ug/kg pentagastrin IV [Mass/Vol]Calcitonin [Mass/volume] in Serum or Plasma --2 minutes post 0.5 ug/kg pentagastrin IVCalcit 2M p 0.5 ug/kg Pg IV SerPl-mCncCalcitonin^2M post 0.5 ug/kg pentagastrin IVCHALCalcitonin 2 min after 0.5 ug/kg Pentagastrin intravenous, BloodMCnc

Frequently asked questions

Code details

Code21133-4
SystemLOINC
Display nameCalcitonin 2 Min post 0.5 ug/kg pentagastrin IV [Mass/Vol]
DescriptionCalcitonin^2M post 0.5 ug/kg pentagastrin IV
Short nameCalcit 2M p 0.5 ug/kg Pg IV SerPl-mCnc
ComponentCalcitonin^2M post 0.5 ug/kg pentagastrin IV
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHAL
Example unitspg/mL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.34

Consumer names

Calcitonin 2 min after 0.5 ug/kg Pentagastrin intravenous, Blood

Part names

Calcitonin^2M post 0.5 ug/kg pentagastrin IVMCncPtSer/PlasQnMass 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.