What punctuation separates the common portion of the procedure description from the unique portion?

In medical coding, when describing procedures in the CPT (Current Procedural Terminology) coding system, a semicolon is used to separate the common portion of the procedure description from the unique portion. This punctuation indicates that the first part of the description applies to multiple codes that share the same foundational elements, while the second part provides the specific details that differentiate each code from one another.

Using a semicolon ensures clarity in the coding process, as it delineates the shared characteristics of a group of procedures while allowing for the inclusion of unique aspects that pertain solely to specific procedures within that group. This standardized format helps coders accurately interpret and apply the codes relevant to a patient’s procedure, enhancing consistency and reducing the likelihood of errors in documentation and billing.