Cleveland HeartLab C, Test

CPT Code: 82435
Order Code: C106
ABN Requirement:  No
Synonyms: CL-
Specimen: Serum
Volume: 0.5 mL
Minimum Volume: 0.2 mL
Container: Gel-barrier tube (SST, Tiger Top)


  1. Collect and label sample according to standard protocols.
  2. Gently invert tube 5 times immediately after draw. DO NOT SHAKE.
  3. Allow blood to clot 30 minutes.
  4. Centrifuge for 10 minutes.

Transport: Store serum at 2°C to 8°C after collection and ship the same day per packaging instructions provided with the Cleveland HeartLab shipping box.


Ambient (15-25°C): 7 days
Refrigerated (2-8°C): 7 days
Frozen (-20°C): stable
Deep Frozen (-70°C): stable

Causes for Rejection: Specimens other than serum; improper labeling; samples not stored properly; samples older than stability limits

Methodology: Ion Specific Electrode (ISE)

Turn Around Time: 1 to 3 days

Reference Range:

Age mmol/L
All Ages 95-108

Critical Values

Age Critical Low mmol/L Critical High mmol/L
All Ages <75 >125

Intended Use: A chloride test may be used to monitor kidney function, to determine the presence and cause of an electrolyte or acid-base balance and to monitor treatment.

Limitations: Chloride content is stable when the sample is stored in a tightly closed container.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.