Thrombosis due to nervous system prosth dev/grft, subs

This code indicates a blood clot (thrombosis) that has formed as a direct complication of a prosthetic device, implant, or graft within the nervous system. This includes devices such as shunts, stimulators, or other neurosurgical implants. The "D" in the code signifies that this is a subsequent encounter for the management of this thrombosis.

Use this code when a patient is receiving ongoing care for a thrombosis that developed due to a nervous system prosthetic device, implant, or graft. This would apply to follow-up visits, medication adjustments, or further diagnostic work-up related to the established thrombosis. It is not for the initial diagnosis or for sequelae of the thrombosis.

• Ensure the documentation clearly links the thrombosis to the nervous system device.
• Confirm this is a subsequent encounter for the thrombosis, not the initial treatment.
• Always code the underlying nervous system condition or reason for the implant as a primary diagnosis if applicable.