Skip to content
Dx

ICD-10-CM 2027 diagnosis code

S06.0XAConcussion with loss of consciousness status unknown

Not billable — use a more specific codeRequires 7th character

S06.0XA is a header code, so it can't be reported by itself. Choose one of the 3 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 S06.0XA

S06.0XA is the ICD-10-CM diagnosis code for concussion with loss of consciousness status unknown. 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 3 subcodes must be used instead.

Within S06.0X (concussion), S06.0XA is specifically for concussion with loss of consciousness status unknown. Related codes cover without loss of consciousness (S06.0X0), with loss of consciousness of 30 minutes or less (S06.0X1) and with loss of consciousness of unspecified duration (S06.0X9).

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 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

Coding notes

Applicable toConditions and synonyms classified to this code
  • Concussion NOS

Notes that apply from higher levels

Instructions written at a parent level also apply to S06.0XA.

› From S06.0 Concussion
Excludes1
  • concussion with other intracranial injuries classified in subcategories S06.1- to S06.6-, and S06.81- to S06.89-, code to specified intracranial injury
› 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
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.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to S06.0XA.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2023 (effective 10/1/2022): Added
  • No changes since FY2023.

Common questions about S06.0XA

Is S06.0XA billable?

No. S06.0XA is a header code. Report one of its more specific subcodes instead.