I/I react d/t ventricular intracranial shunt, init

This code signifies an infection or inflammatory response specifically caused by a ventricular intracranial (communicating) shunt. This reaction is a complication of the implanted device, leading to symptoms such as fever, headache, altered mental status, or signs of localized inflammation along the shunt tract.

Use this code for the initial encounter when a patient presents with a newly diagnosed infection or inflammatory reaction directly attributable to a ventricular intracranial shunt. This applies to the first time the patient is seen for this specific complication, regardless of whether treatment has begun.

• Always assign an additional code to specify the type of infection (e.g., bacterial meningitis, ventriculitis) if known.
• Ensure documentation clearly links the infection/inflammation to the presence of the ventricular intracranial shunt.
• This "A" initial encounter seventh character is used for the entire period a patient is receiving active treatment for the complication.