ICD-10-CM 2027 diagnosis code
S06.8APrimary blast injury of brain, not elsewhere classified
S06.8A is a header code, so it can't be reported by itself. Choose one of the 11 more specific codes beneath it and add the required 7th character.
Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S06.8A
S06.8A is the ICD-10-CM diagnosis code for primary blast injury of brain, not elsewhere classified. 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 11 subcodes must be used instead.
Within S06.8 (other specified intracranial injuries), S06.8A is specifically for primary blast injury of brain, not elsewhere classified. Related codes cover injury of right internal carotid artery, intracranial portion, not elsewhere classified (S06.81), injury of left internal carotid artery, intracranial portion, not elsewhere classified (S06.82) and other specified intracranial injury (S06.89).
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.
The conditions in its Excludes2 note aren't part of S06.8A, but may be coded alongside it if the patient has both: traumatic cerebral edema (S06.1).
Use an additional code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-).
It was added in FY2023, effective October 1, 2022.
7th character
The appropriate 7th character is to be added to each code from category S06, except as noted below
- S06.8A0Primary blast injury of brain, not elsewhere classified without loss of consciousness
- S06.8A1Primary blast injury of brain, not elsewhere classified with loss of consciousness of 30 minutes or less
- S06.8A2Primary blast injury of brain, not elsewhere classified with loss of consciousness of 31 minutes to 59 minutes
- S06.8A3Primary blast injury of brain, not elsewhere classified with loss of consciousness of 1 hour to 5 hours 59 minutes
- S06.8A4Primary blast injury of brain, not elsewhere classified with loss of consciousness of 6 hours to 24 hours
- S06.8A5Primary blast injury of brain, not elsewhere classified with loss of consciousness greater than 24 hours with return to pre-existing conscious level
- S06.8A6Primary blast injury of brain, not elsewhere classified with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving
- S06.8A7Primary blast injury of brain, not elsewhere classified with loss of consciousness of any duration with death due to brain injury prior to regaining consciousness
- S06.8A8Primary blast injury of brain, not elsewhere classified with loss of consciousness of any duration with death due to other cause prior to regaining consciousness
- S06.8A9Primary blast injury of brain, not elsewhere classified with loss of consciousness of unspecified duration
- S06.8AAPrimary blast injury of brain, not elsewhere classified with loss of consciousness status unknown
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to S06.8A.
› 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
1 entriesTerms in the official ICD-10-CM index that lead to S06.8A.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2023 (effective 10/1/2022): Added
- No changes since FY2023.
Common questions about S06.8A
Is S06.8A billable?
- No. S06.8A is a header code. Report one of its more specific subcodes instead.