Is T25.439 a billable code?
No. T25.439 is a header code that groups 3 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
T25.439: Corrosion of unspecified degree of unspecified toe(s) (nail)
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
T25.439 groups related diagnoses under corrosion of unspecified degree of unspecified toe(s) (nail). It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under T25.439
- T25.439ACorrosion of unspecified degree of unspecified toe(s) (nail), initial encounter
- T25.439DCorrosion of unspecified degree of unspecified toe(s) (nail), subsequent encounter
- T25.439SCorrosion of unspecified degree of unspecified toe(s) (nail), sequela
Other codes in T25.43 Corrosion of unspecified degree of toe(s) (nail)
T25.439 questions
What does T25.439 mean?
T25.439 is the ICD-10-CM code for Corrosion of unspecified degree of unspecified toe(s) (nail). 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.