Non-Billable / Non-Specific Code
ICD-10-CM S04 is the diagnosis code for Injury of cranial nerve. This code falls under the section "Injuries to the head" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where S04 sits in the ICD-10-CM classification helps ensure proper coding:
No, S04 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
S04 is the ICD-10-CM diagnosis code for "Injury of cranial nerve". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
S04 is located in Section S00-S09 — "Injuries to the head" within Chapter 19 of the ICD-10-CM Tabular List.
S04 has 10 sub-code(s) that provide more specific detail: S04.0, S04.1, S04.2, S04.3, S04.4 and more.
Use S04 when the patients documented diagnosis matches "Injury of cranial nerve" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Injury of cranial nerve is S04.
No, S04 is non-billable. Use a more specific sub-code for primary diagnosis billing.
S04 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, S04 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.