Sign in →

Test Code C1Q Circulating Immune Complex, C1q Binding

Important Note

**Note: Do Not confuse this code with C1q COMPLEMENT, Sunquest code C1QCOM.

Additional Codes

Mayo Code
Sunquest Code


Reporting Name

CIC, C1q Binding

Performing Laboratory

ARUP Laboratories

Specimen Type


Specimen Required

Draw blood in a plain, red-top tube(s). (Serum gel tube is acceptable.) Separate from cells and freeze immediately. Send 1 mL of serum frozen in a plastic vial.

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen 14 days

Reference Values

0.0-3.9 ug Eq/mL


Less than or equal to 3.9 ug Eq/mL is considered negative for circulating complement binding immune complexes.


Circulating immune complexes may be found without any evident pathology and positive results do not necessarily implicate the immune complex in a disease process.

Day(s) Performed

Saturday, Monday, and Thursday

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FCQBA CIC, C1q Binding 27831-7


Result ID Test Result Name Result LOINC Value
Z2636 CIC, C1q Binding 27831-7

Report Available

4 to 15 days

Reject Due To

Hemolysis: Yes
Thawing: Warm reject; Cold reject
Lipemia: NA
Icterus: NA
Other: Non-frozen specimen

Method Name

Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)