T25.799S
✓ BillableCorrosion of third degree of multiple sites of unspecified ankle and foot, sequela
Injury, poisoning and certain other consequences of external causes (S00-T88)
📋 Code Instructions
inherited- • external cause code to identify place (Y92)
- • Code first: (T51-T65) to identify chemical and intent
Clinical Description
ICD-10-CM code T25.799S represents corrosion of third degree of multiple sites of unspecified ankle and foot, sequela. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code T25.799S?
ICD-10-CM code T25.799S is "Corrosion of third degree of multiple sites of unspecified ankle and foot, sequela". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T25.799S a billable ICD-10 code?
Yes, T25.799S is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Related Codes in T25.799
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)