ICD-10-CM FY2027 diagnosis code

T20.512: Corrosion of first degree of left ear [any part, except ear drum]

Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027

T20.512 groups related diagnoses under corrosion of first degree of left ear [any part, except ear drum]. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.

Billable codes under T20.512

T20.512 questions

Is T20.512 a billable code?

No. T20.512 is a header code that groups 3 more specific codes. Use one of the billable codes listed on this page instead.

What does T20.512 mean?

T20.512 is the ICD-10-CM code for Corrosion of first degree of left ear [any part, except ear drum]. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.