S09.90
S09.90: Unspecified injury of head
Non-billable headerICD-10-CM
S09.90 is a non-billable header ICD-10-CM code for unspecified injury of head. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category S09
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Head injury NOS
Other codes that can never be billed with S09.90
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Injury›brow
- Injury›forehead
- Injury›gum
- Injury›head
- Injury›mastoid region
- Injury›occipital(region) (scalp)
- Injury›parietal(region) (scalp)
- Injury›scalp
- Injury›skull NEC
- Injury›temple
- Injury›temporal region
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead S09.90
3 child codes. Green means billable.