S00.40
⚠ Non-billable (Header)Unspecified superficial injury of ear
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.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • diffuse cerebral contusion (S06.2-)
- • focal cerebral contusion (S06.3-)
- • injury of eye and orbit (S05.-)
- • open wound of head (S01.-)
Child Codes (3)
Clinical Description
ICD-10-CM code S00.40 represents unspecified superficial injury of ear. 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 6-character code at the 5th level of specificity. There are 3 more specific child codes under S00.40. Coders should note that S00.40 has 4 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code S00.40?
ICD-10-CM code S00.40 is "Unspecified superficial injury of ear". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is S00.40 a billable ICD-10 code?
No, S00.40 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with S00.40?
S00.40 has 4 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in S00.4
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)