Presence of cerebrospinal fluid drainage device

This code indicates that a patient has an implanted device designed to drain cerebrospinal fluid (CSF). These devices are typically shunts, such as ventriculoperitoneal (VP) shunts or ventriculoatrial (VA) shunts, used to manage conditions like hydrocephalus. The presence of the device is a significant aspect of the patient's medical history and ongoing care.

Assign this code for patients who have a permanent or long-term CSF drainage device in place, regardless of the reason for its insertion. This code is appropriate for follow-up visits, encounters for device maintenance, or when the presence of the device impacts treatment for other conditions. It should be used as a secondary diagnosis to provide context for the patient's overall health status.

• Always code the underlying condition requiring the CSF drainage device (e.g., hydrocephalus) as the primary diagnosis, if applicable.
• Do not use this code for temporary external CSF drains.
• Consider additional codes for complications related to the device, such as infection or malfunction, if present.