In code B2210ZZ, what does the 0 denote?

In the code B2210ZZ, the "0" at the end signifies standard preparation. In ICD-10-PCS coding, each character in a code has a specific meaning, and the fifth character typically represents the type of preparation used for the procedure. In this context, a "0" indicates that the standard preparation is being utilized.

By understanding the structure of ICD-10-PCS codes, we can see that options related to types of contrast solutions (like low osmolar or high osmolar) pertain to other characters in the code rather than the final character. The last character in this particular coding system is primarily reserved for denoting the preparation method, reinforcing that the designation of “standard preparation” is the correct interpretation of the "0" in this code.