S06 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Intracranial injury.
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7th characters D and S do not apply to codes in category S06 with 6th character 7 - death due to brain injury prior to regaining consciousness, or 8 - death due to other cause prior to regaining consciousness.
Traumatic brain injury
Code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)
Head injury NOS (S09.90)
The appropriate 7th character is to be added to each code from category S06, except as noted below
A: initial encounter
D: subsequent encounter
S: sequela
Concussion
Traumatic cerebral edema
Diffuse traumatic brain injury
Focal traumatic brain injury
Epidural hemorrhage
Traumatic subdural hemorrhage
Traumatic subarachnoid hemorrhage
Other specified intracranial injuries
Unspecified intracranial injury
Traumatic brain compression and herniation
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