S99.8
⚠ Non-billable (Header)Other specified injuries of ankle and foot
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ This is a category header code — not billable. Use a more specific child code below.
Clinical Description
ICD-10-CM code S99.8 represents other specified injuries of ankle and foot. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 5-character code at the 4th level of specificity. There are 2 more specific child codes under S99.8.
Frequently Asked Questions
What is ICD-10 code S99.8?
ICD-10-CM code S99.8 is "Other specified injuries of ankle and foot". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is S99.8 a billable ICD-10 code?
No, S99.8 is a non-billable header code. A more specific child code must be used for billing.
Related Codes in S99
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)