What does a fourth character value of 8 in table 9WB denote?

A fourth character value of 8 in table 9WB designates the rib cage as the site of the procedure. In the context of ICD-10-PCS coding, the fourth character provides a specific anatomical region where the procedure is being performed.

In this classification system, each character in the code has a distinct meaning, and the values assigned to these characters are used to accurately reflect the procedure's specifics. The rib cage is the structure associated with the number 8, indicating that the procedure relates to this specific area of the body, which is important for accurately coding the intervention performed.

Understanding these specific values allows for precise documentation and reporting in medical coding, ensuring that healthcare providers receive appropriate reimbursements and that medical records accurately reflect the procedures performed.