Get started free

T20.51

Non-billable

Corrosion of first degree of ear [any part, except ear drum]

T20.51 is the ICD-10-CM code for Corrosion of first degree of ear [any part, except ear drum]. It is a non-billable category code — use a more specific child code such as T20.511 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T20.5
Subcodes
3
Edition
FY2026

S00-T88 Injury, poisoning and certain other consequences of external causes

Excludes2 — not included here

  • •corrosion of ear drum (T28.91-)

Frequently asked questions

What is ICD-10 code T20.51?
T20.51 is the ICD-10-CM code for "Corrosion of first degree of ear [any part, except ear drum]". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T20.51 a billable code?
No — T20.51 is a non-billable header code. Use a more specific child code (such as T20.511) for billing.
What are the subcodes of T20.51?
T20.51 has 3 more specific child codes, including T20.511, T20.512, T20.519.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →