Understanding CPT Code 96999: Unlisted Services & Claim Adjudication

96999 is an unlisted service or procedure for laboratory. This CPT code can be used when there is no other CPT code that adequately describes the service or procedure performed. When using CPT code 96999, it is important to provide a detailed description of the service or procedure performed so that the insurance company can properly adjudicate the claim. Additional documentation may also be required to support the use of this CPT code.