What is the CPT code for electrolyte?

The CPT code for electrolyte testing is 80051, which refers to a comprehensive metabolic panel that includes electrolyte levels along with other tests. For specific electrolytes, individual codes may apply, such as 84132 for potassium, 80048 for a basic metabolic panel that includes electrolytes, or 84133 for sodium. Always refer to the latest coding resources or guidelines for accurate billing and coding practices.