T20.71
Corrosion of third degree of ear [any part, except ear drum]
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 6 never code together
T20code
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 5
T20.7code
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 1
Alongside this code 8 same parent — T20.7
T20.70 Corrosion of third degree of head, face, and neck, unsp site category T20.72 Corrosion of third degree of lip(s) category T20.73 Corrosion of third degree of chin category T20.74 Corrosion of third degree of nose (septum) category T20.75 Corrosion of third degree of scalp [any part] category T20.76 Corrosion of third degree of forehead and cheek category T20.77 Corrosion of third degree of neck category T20.79 Corrosion of 3rd deg mu sites of head, face, and neck category
Subordinate codes 3
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.