T24.522
⚠ Non-billable (Header)Corrosion of first degree of left knee
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.
⚠️ Excludes2
inheritedRules inherited from parent codes.
- • burn and corrosion of ankle and foot (T25.-)
- • burn and corrosion of hip region (T21.-)
📋 Code Instructions
inherited- • external cause code to identify place (Y92)
- • Code first: (T51-T65) to identify chemical and intent
Child Codes (3)
Clinical Description
ICD-10-CM code T24.522 represents corrosion of first degree of left knee. 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 7-character code at the 6th level of specificity. There are 3 more specific child codes under T24.522.
Frequently Asked Questions
What is ICD-10 code T24.522?
ICD-10-CM code T24.522 is "Corrosion of first degree of left knee". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T24.522 a billable ICD-10 code?
No, T24.522 is a non-billable header code. A more specific child code must be used for billing.
Can T24.522 be coded with other codes?
T24.522 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in T24.52
Other codes in the same category that may be relevant for differential coding:
🧪 Validate Combinations
Add T24.522 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)