Question

What note indicates that this code may be assigned as a first-listed or principal diagnosis when the casual condition is unknown or not applicable?

Answer 1

A default note is used when there is no specific documentation to support any other diagnosis and the causal condition is unknown or not applicable.

Step-by-step explanation:

The note that indicates that a code may be assigned as a first-listed or principal diagnosis when the causal condition is unknown or not applicable is a "default" note. This note is used when there is no specific documentation to support any other diagnosis. It is important to note that the use of default codes should be avoided whenever possible as they do not provide specific information about the patient's condition.