ICD-10-CM 2027 diagnosis code
S06.0XConcussion
S06.0X 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 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 S06.0X
S06.0X is the ICD-10-CM diagnosis code for concussion. 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.
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.
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
- S06.0X0Concussion without loss of consciousness
- S06.0X1Concussion with loss of consciousness of 30 minutes or less
- S06.0X2Concussion with loss of consciousness of 31 minutes to 59 minutes
- S06.0X3Concussion with loss of consciousness of 1 hour to 5 hours 59 minutes
- S06.0X4Concussion with loss of consciousness of 6 hours to 24 hours
- S06.0X5Concussion with loss of consciousness greater than 24 hours with return to pre-existing conscious level
- S06.0X6Concussion with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving
- S06.0X7Concussion with loss of consciousness of any duration with death due to brain injury prior to regaining consciousness
- S06.0X8Concussion with loss of consciousness of any duration with death due to other cause prior to regaining consciousness
- S06.0X9Concussion with loss of consciousness of unspecified duration
- S06.0XAConcussion with loss of consciousness status unknown
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Notes that apply from higher levels
Instructions written at a parent level also apply to S06.0X.
› From S06.0 Concussion
› 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.
Codes whose notes reference S06.0X
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 S06.0X
Is S06.0X billable?
- No. S06.0X is a header code. Report one of its more specific subcodes instead.