Other varicella complications

This code signifies varicella (chickenpox) infections that have resulted in complications not specifically classified elsewhere. It covers a range of less common or unspecified adverse effects directly attributable to the varicella zoster virus.

Apply this code when documentation clearly links a complication to a varicella infection, and a more specific complication code (e.g., B01.0 for meningitis, B01.1 for encephalitis) is not available. Examples include varicella-associated hepatitis or myocarditis when no other specific code exists.

• Always sequence the specific complication code first if available, followed by this code if further detail is needed.
• Ensure the medical record explicitly states the complication is due to varicella.
• Avoid using this code if a more precise B01 subcategory exists for the documented complication.