Chickenpox with unspecified complication

This code signifies a diagnosis of varicella (chickenpox) where a complication has occurred, but the specific nature of that complication is not documented or is unknown. It indicates that the patient is experiencing more than just uncomplicated chickenpox, but without enough detail to assign a more specific complication code.

Use this code when the medical record clearly states a diagnosis of chickenpox and mentions a complication, but does not specify the type of complication (e.g., "chickenpox with complication," "complicated varicella"). Documentation must confirm the presence of varicella and an associated, but undefined, complication.

• Avoid using this code if a specific complication (e.g., pneumonia, encephalitis, secondary bacterial infection) is documented; instead, code the specific complication.
• Query the provider for clarification if "complication" is noted without further detail to potentially assign a more precise code.
• This code is a "catch-all" for unspecified complications and should be used as a last resort when more specific information is unavailable.