LOINCOrder

LOINC Code 108752-7: Complement C2 [Measurement]

108752-7 is a LOINC code used to identify Complement C2 [Measurement] 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 Complement C2. 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 Complement C2. 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: TRIAL
  • Order vs observation: Order

What it does not mean

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

Key facts

Complement C2 [Measurement] in Serum or Plasma
Complement C2
This term is intended to collate similar measurements for the LOINC SNOMED CT Collaboration in an ontological view. Additionally, it can be used to communicate a laboratory order, either alone or in combination with specimen or other information in the order. It may NOT be used to report back the measured patient value. [https//lo.inc/ce2mb6]
Comp; Complmt; Lab orders; Msmt; Pl; Plasma; Plsm; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Complement C2 [Measurement]Complement C2 [Measurement] in Serum or PlasmaC2 Msmt SerPlComplement C2LABORDERS.ONTOLOGYComplement C2, Blood{Measurement}

Frequently asked questions

Code details

Code108752-7
SystemLOINC
Display nameComplement C2 [Measurement]
DescriptionComplement C2
Short nameC2 Msmt SerPl
ComponentComplement C2
Property{Measurement}
Timing-
System (specimen)Ser/Plas
Scale-
ClassLABORDERS.ONTOLOGY
StatusTRIAL
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.81
Last changed2.81

Consumer names

Complement C2, Blood

Part names

Complement C2{Measurement}-Ser/PlasMeasurementSerum 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 108752-7 | HealthAssure