ICD-10-CM 2027 diagnosis code
S06.9Unspecified intracranial injury
S06.9 is a header code, so it can't be reported by itself. Choose one of the 1 more specific codes beneath it and add the required 7th character.
Looking up by condition? See ICD-10 code for TBI, ICD-10 code for Intracranial injury, ICD-10 code for Brain traumatic injury.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S06.9
S06.9 is the ICD-10-CM diagnosis code for unspecified intracranial injury. It belongs to category S06 (intracranial injury), block S00-S09 (injuries to the head) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 1 subcodes must be used instead.
Within S06, choose S06.9 (Unspecified intracranial injury) only when documentation doesn't support a more specific option: concussion (S06.0), traumatic cerebral edema (S06.1), diffuse traumatic brain injury (S06.2), focal traumatic brain injury (S06.3), epidural hemorrhage (S06.4), traumatic subdural hemorrhage (S06.5), traumatic subarachnoid hemorrhage (S06.6), other specified intracranial injuries (S06.8) and 1 more.
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
Don't report S06.9 together with the conditions in its Excludes1 note: conditions classifiable to S06.0- to S06.8-code to specified intracranial injury and head injury NOS (S09.90).
Use an additional code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category S06, except as noted below
- S06.9XUnspecified intracranial injury
- S06.9X0Unspecified intracranial injury without loss of consciousness
- S06.9X1Unspecified intracranial injury with loss of consciousness of 30 minutes or less
- S06.9X2Unspecified intracranial injury with loss of consciousness of 31 minutes to 59 minutes
- S06.9X3Unspecified intracranial injury with loss of consciousness of 1 hour to 5 hours 59 minutes
- S06.9X4Unspecified intracranial injury with loss of consciousness of 6 hours to 24 hours
- S06.9X5Unspecified intracranial injury with loss of consciousness greater than 24 hours with return to pre-existing conscious level
- S06.9X6Unspecified intracranial injury with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving
- S06.9X7Unspecified intracranial injury with loss of consciousness of any duration with death due to brain injury prior to regaining consciousness
- S06.9X8Unspecified intracranial injury with loss of consciousness of any duration with death due to other cause prior to regaining consciousness
- S06.9X9Unspecified intracranial injury with loss of consciousness of unspecified duration
- S06.9XAUnspecified intracranial injury with loss of consciousness status unknown
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Coding notes
- Brain injury NOS
- Head injury NOS with loss of consciousness
- Traumatic brain injury NOS
Notes that apply from higher levels
Instructions written at a parent level also apply to S06.9.
› From S06 Intracranial injury
- 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
- head injury NOS (S09.90)
- code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)
Broader instructions also apply from S00-S09 Injuries to the head and Chapter 19: Injury, poisoning and certain other consequences of external causes.
Alphabetic index entries
5 entriesTerms in the official ICD-10-CM index that lead to S06.9.
Codes whose notes reference S06.9
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about S06.9
Is S06.9 billable?
- No. S06.9 is a header code. Report one of its more specific subcodes instead.