Infectious mononucleosis, unsp with other complication

This code signifies a diagnosis of infectious mononucleosis where the specific type of complication is not documented or is not further specified. It indicates that the patient is experiencing a complication related to the Epstein-Barr virus infection, but the nature of that complication is unknown or unclassified.

This code is appropriate when the medical record clearly states a diagnosis of infectious mononucleosis with an associated complication, but the documentation does not provide enough detail to assign a more specific complication code. It can be used when the provider notes "mono with complication, type unspecified" or similar phrasing.

• Avoid using this code if a more specific complication (e.g., splenic rupture, hepatitis, neurological involvement) is documented.
• Always query the provider for clarification on the specific complication if possible to allow for more precise coding.
• This code should be sequenced as a primary diagnosis if it is the reason for the encounter, or as a secondary diagnosis if it represents a co-morbidity.