COBGC Coding Guidelines and Conventions 1

Question 1

What does the “*” symbol in ICD-10-CM indicate?

Accepted Answer

A placeholder for additional characters

Answer

In ICD-10-CM, the letter 'X' (not an asterisk '*') is used as a placeholder character. This placeholder is crucial when a code has fewer than six characters but requires a seventh character for full specificity. It ensures that the code maintains its proper structure and allows for future expansion, enabling the assignment of more detailed subcategories when necessary.

Question 2

In CPT coding, what is the purpose of using a “modifier”?

Accepted Answer

To indicate that a service was performed with special circumstances

Answer

In CPT coding, a modifier is a two-digit code appended to a CPT code to indicate that a service or procedure was performed with special circumstances. It provides additional information about how the service was performed, such as indicating a bilateral procedure, multiple procedures, or that only a professional component of a service was rendered, without changing the basic definition of the code.

Question 3

Which coding guideline helps determine whether a procedure should be bundled or separately coded?

Accepted Answer

National Correct Coding Initiative (NCCI)

Answer

The National Correct Coding Initiative (NCCI) is a set of coding guidelines developed by CMS to promote correct coding methodologies and prevent improper coding. NCCI edits identify code pairs that should not be billed together (mutually exclusive) or services that are typically performed together and should be bundled into a single code, thus determining whether a procedure should be bundled or separately coded.

Question 4

How are “excludes1” and “excludes2” notes used in ICD-10-CM coding?

Accepted Answer

To indicate a code that cannot be used with another code

Answer

In ICD-10-CM coding, "Excludes1" and "Excludes2" notes provide crucial instructions on how to use codes together. An "Excludes1" note means the two conditions cannot occur together and therefore cannot be coded together. An "Excludes2" note indicates that the condition excluded is not part of the condition represented by the code, but a patient could have both conditions simultaneously, allowing both codes to be used.

Question 5

What is the main purpose of using the “add-on” codes in CPT coding?

Accepted Answer

To report a service that is performed in conjunction with a primary procedure

Answer

The main purpose of using "add-on" codes in CPT coding is to report a service that is performed in conjunction with a primary procedure. These codes describe additional services that are commonly carried out at the same time as a primary procedure but are not considered an inherent part of it. Add-on codes are never reported as stand-alone codes and must always be appended to a primary procedure code.

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COBGC Coding Guidelines and Conventions 1