Is T23.721 a billable code?
No. T23.721 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
T23.721: Corrosion of third degree of single right finger (nail) except thumb
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
T23.721 groups related diagnoses under corrosion of third degree of single right finger (nail) except thumb. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under T23.721
- T23.721ACorrosion of third degree of single right finger (nail) except thumb, initial encounter
- T23.721DCorrosion of third degree of single right finger (nail) except thumb, subsequent encounter
- T23.721SCorrosion of third degree of single right finger (nail) except thumb, sequela
Other codes in T23.72 Corrosion of third degree of single finger (nail) except thumb
T23.721 questions
What does T23.721 mean?
T23.721 is the ICD-10-CM code for Corrosion of third degree of single right finger (nail) except thumb. 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.