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LOINC Code 50179-1: Calcitonin Calcium and Pentagastrin challenge panel

50179-1 is a LOINC code used to identify Calcitonin Calcium and Pentagastrin challenge panel 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 Calcium & Pentagastrin challenge panel. 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 Calcium & Pentagastrin challenge panel. 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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

Calcitonin Calcium and Pentagastrin challenge panel - Serum or Plasma
Calcitonin Calcium & Pentagastrin challenge panel
Calcium and pentagastrin stimulate the secretion of calcitonin by the parafollicular cells of the thyroid gland.14 This secretion is increased in patients with medullary thyroid carcinoma (MTC) relative to healthy individuals. Stimulation with the combination of calcium and pentagastrin produces better sensitivity and specificity for the diagnosis of MTC than basal calcitonin measurement or use of calcium or pentagastrin alone. (http//www.labcorp.com/datasets/labcorp/html/appendix_group/appendix/section/ri600400.htm)
Ca; Cal; Calcit Ca+Pentagastrin Pnl; Calcitonin stimulation test; Calcium-Pentagastrin stimulation test; CHEMISTRY.CHALLENGE TESTING; CT; Pan; PANEL.CHALLENGE; Panl; Pl; Plasma; Plsm; Pnl; Point in time; 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 Calcium and Pentagastrin challenge panelCalcitonin Calcium and Pentagastrin challenge panel - Serum or PlasmaCalcit Ca+Pentagastrin Pnl SerPlCalcitonin Calcium & Pentagastrin challenge panelPANEL.CHALCalcitonin calcium and Pentagastrin challenge panel, Blood-

Frequently asked questions

Code details

Code50179-1
SystemLOINC
Display nameCalcitonin Calcium and Pentagastrin challenge panel
DescriptionCalcitonin Calcium & Pentagastrin challenge panel
Short nameCalcit Ca+Pentagastrin Pnl SerPl
ComponentCalcitonin Calcium & Pentagastrin challenge panel
Property-
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassPANEL.CHAL
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.42

Consumer names

Calcitonin calcium and Pentagastrin challenge panel, Blood

Part names

Calcitonin Calcium & Pentagastrin challenge panel-PtSer/PlasQnCalcitonin Calcium and Pentagastrin challenge panelPoint 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.

LOINC Code 50179-1 | HealthAssure