T85.635Header code — not billable
Leakage of other nervous system device, implant or graft
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T85
- Effective date
- October 1, 2026
Related codes in category T85
T85Complications of internal prosth dev/grftT85.0Mechanical complication of ventricular intracranial shuntT85.01Breakdown (mechanical) of ventricular intracranial shuntT85.01XABreakdown of ventricular intracranial shunt, initYesT85.01XDBreakdown of ventricular intracranial shunt, subsYesT85.01XSBreakdown of ventricular intracranial shunt, sequelaYesT85.02Displacement of ventricular intracranial shuntT85.02XADisplacement of ventricular intracranial shunt, initYesT85.02XDDisplacement of ventricular intracranial shunt, subsYesT85.02XSDisplacement of ventricular intracranial shunt, sequelaYesT85.03Leakage of ventricular intracranial (communicating) shuntT85.03XALeakage of ventricular intracranial shunt, initYes
Frequently asked questions
What is ICD-10 code T85.635?
T85.635 is an ICD-10-CM diagnosis code for Leakage of other nervous system device, implant or graft.
Is T85.635 a billable code?
No. T85.635 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is T85.635 in?
T85.635 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T85.635 become effective?
T85.635 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T85.635?
T85.635 belongs to category T85, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.