ICD-10-CM 2027 diagnosis code
S06.82Injury of left internal carotid artery, intracranial portion, not elsewhere classified
S06.82 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.Short description: Injury of left internal carotid artery, intcr
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 S06.82
S06.82 is the ICD-10-CM diagnosis code for injury of left internal carotid artery, intracranial portion, 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), S06.82 is specifically for injury of left internal carotid artery, intracranial portion, not elsewhere classified. Related codes cover injury of right internal carotid artery, intracranial portion, not elsewhere classified (S06.81), other specified intracranial injury (S06.89) and primary blast injury of brain, not elsewhere classified (S06.8A).
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
- S06.820Injury of left internal carotid artery, intracranial portion, not elsewhere classified without loss of consciousness
- S06.821Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 30 minutes or less
- S06.822Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 31 minutes to 59 minutes
- S06.823Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 1 hour to 5 hours 59 minutes
- S06.824Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 6 hours to 24 hours
- S06.825Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness greater than 24 hours with return to pre-existing conscious level
- S06.826Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving
- S06.827Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of any duration with death due to brain injury prior to regaining consciousness
- S06.828Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of any duration with death due to other cause prior to regaining consciousness
- S06.829Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of unspecified duration
- S06.82AInjury of left internal carotid artery, intracranial portion, not elsewhere classified 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 S06.82.
› 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.
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 S06.82
Is S06.82 billable?
- No. S06.82 is a header code. Report one of its more specific subcodes instead.