| Full description | Stenosis due to nervous system prosthetic devices, implants and grafts |
| Billable | No — use a more specific child code |
| Chapter | Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T88) |
| Section | Complications of surgical and medical care, not elsewhere classified (T80-T88) |
| Parent code | T85.85 — Stenosis due to internal prosth dev/grft, NEC |
| Requires 7th character | Yes |