ICD-10-CM 2027 diagnosis code

S06.2Diffuse traumatic brain injury

Not billable — use a more specific codeRequires 7th character

S06.2 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.

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 S06.2

S06.2 is the ICD-10-CM diagnosis code for diffuse traumatic brain 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 (intracranial injury), S06.2 is specifically for diffuse traumatic brain injury. Related codes cover concussion (S06.0), traumatic cerebral edema (S06.1), 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), unspecified intracranial injury (S06.9) 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 S06.2 together with the conditions in its Excludes1 note: traumatic diffuse cerebral edema (S06.1X-).

Use an additional code, if applicable, for traumatic brain compression or herniation (S06.A-). 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

S06.2XDiffuse traumatic brain injury

Ainitial encounter
Dsubsequent encounter
Ssequela

Coding notes

Applicable toConditions and synonyms classified to this code

Diffuse axonal brain injury

Excludes1Not coded here — never report together with this code

traumatic diffuse cerebral edema (S06.1X-)

Use additional codeAdd a secondary code to fully describe the condition

code, if applicable, for traumatic brain compression or herniation (S06.A-)

Notes that apply from higher levels

Instructions written at a parent level also apply to S06.2.

› From S06 Intracranial injury

Note

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.

Includes

traumatic brain injury

Excludes1

head injury NOS (S09.90)

Use additional code

code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)

Code also

any associated:
open wound of head (S01.-)
skull fracture (S02.-)

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 S06.2

S00Excludes1
S06.ACode first

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 S06.2

Is S06.2 billable?: No. S06.2 is a header code. Report one of its more specific subcodes instead.