| Full description | Corrosion of unspecified degree of multiple sites of ankle and foot |
| Billable | No — use a more specific child code |
| Chapter | Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T88) |
| Section | Burns and corrosions of external body surface, specified by site (T20-T25) |
| Parent code | T25.4 — Corrosion of unspecified degree of ankle and foot |