T20.71
Header — not billableCorrosion of third degree of ear [any part, except ear drum]
The ICD-10 code for corrosion of third degree of ear [any part, except ear drum] is T20.71.
T20.71 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
- corrosion of ear drum (T28.91-)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- T20.70Corrosion of third degree of head, face, and neck, unspecified site
- T20.72Corrosion of third degree of lip(s)
- T20.73Corrosion of third degree of chin
- T20.74Corrosion of third degree of nose (septum)
- T20.75Corrosion of third degree of scalp [any part]
- T20.76Corrosion of third degree of forehead and cheek
- T20.77Corrosion of third degree of neck
- T20.79Corrosion of third degree of multiple sites of head, face, and neck
- T20.71Corrosion of third degree of ear [any part, except ear drum]non-billable header