T28.91 — Corrosions of ear drum
Is T28.91 billable?
No — T28.91 is a non-billable header code. T28.91 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 9 billable codes beneath T28.91.
Billable codes under this header
- T28.911ACorrosions of right ear drum, initial encounter
- T28.911DCorrosions of right ear drum, subsequent encounter
- T28.911SCorrosions of right ear drum, sequela
- T28.912ACorrosions of left ear drum, initial encounter
- T28.912DCorrosions of left ear drum, subsequent encounter
- T28.912SCorrosions of left ear drum, sequela
- T28.919ACorrosions of unspecified ear drum, initial encounter
- T28.919DCorrosions of unspecified ear drum, subsequent encounter
- T28.919SCorrosions of unspecified ear drum, sequela
T28.91 at a glance
| Code | T28.91 |
|---|---|
| Description | Corrosions of ear drum |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is T28.91 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to T28.91. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Corrosion › ear › drum (injury) (acid) (caustic) (chemical) (lime) (external) (internal)
Code first — inherited from T28.9
The underlying condition below must be sequenced before T28.91. T28.91 describes a manifestation and cannot be the principal or first-listed diagnosis.
- (T51-T65) to identify chemical and intent
Use additional code — inherited from Chapter 19
Report an additional code alongside T28.91 to fully describe the condition. T28.91 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T28
Report an additional code alongside T28.91 to fully describe the condition. T28.91 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T28.91, but a patient may have both at the same time. When documentation supports it, T28.91 and the excluded code may both be reported.
What codes fall under T28.91? (3)
How long has T28.91 existed?
T28.91 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.