2021 ICD-10-CM Code S06.6

Traumatic subarachnoid hemorrhage

Version 2021

Not Valid for Submission

S06.6 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of traumatic subarachnoid hemorrhage. The code is not specific and is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:S06.6
Short Description:Traumatic subarachnoid hemorrhage
Long Description:Traumatic subarachnoid hemorrhage

Code Classification

Coding Guidelines

The appropriate 7th character is to be added to each code from block Intracranial injury (S06). Use the following options for the aplicable episode of care:

Specific Coding for Traumatic subarachnoid hemorrhage

Non-specific codes like S06.6 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for traumatic subarachnoid hemorrhage:

  • NON-BILLABLE CODE - S06.6X for Traumatic subarachnoid hemorrhage
  • NON-BILLABLE CODE - S06.6X0 for Traumatic subarachnoid hemorrhage without loss of consciousness
  • BILLABLE CODE - Use S06.6X0A for initial encounter
  • BILLABLE CODE - Use S06.6X0D for subsequent encounter
  • BILLABLE CODE - Use S06.6X0S for sequela
  • NON-BILLABLE CODE - S06.6X1 for Traumatic subarachnoid hemorrhage with loss of consciousness of 30 minutes or less
  • BILLABLE CODE - Use S06.6X1A for initial encounter
  • BILLABLE CODE - Use S06.6X1D for subsequent encounter
  • BILLABLE CODE - Use S06.6X1S for sequela
  • NON-BILLABLE CODE - S06.6X2 for Traumatic subarachnoid hemorrhage with loss of consciousness of 31 minutes to 59 minutes
  • BILLABLE CODE - Use S06.6X2A for initial encounter
  • BILLABLE CODE - Use S06.6X2D for subsequent encounter
  • BILLABLE CODE - Use S06.6X2S for sequela
  • NON-BILLABLE CODE - S06.6X3 for Traumatic subarachnoid hemorrhage with loss of consciousness of 1 hour to 5 hours 59 minutes
  • BILLABLE CODE - Use S06.6X3A for initial encounter
  • BILLABLE CODE - Use S06.6X3D for subsequent encounter
  • BILLABLE CODE - Use S06.6X3S for sequela
  • NON-BILLABLE CODE - S06.6X4 for Traumatic subarachnoid hemorrhage with loss of consciousness of 6 hours to 24 hours
  • BILLABLE CODE - Use S06.6X4A for initial encounter
  • BILLABLE CODE - Use S06.6X4D for subsequent encounter
  • BILLABLE CODE - Use S06.6X4S for sequela
  • NON-BILLABLE CODE - S06.6X5 for Traumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours with return to pre-existing conscious level
  • BILLABLE CODE - Use S06.6X5A for initial encounter
  • BILLABLE CODE - Use S06.6X5D for subsequent encounter
  • BILLABLE CODE - Use S06.6X5S for sequela
  • NON-BILLABLE CODE - S06.6X6 for Traumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving
  • BILLABLE CODE - Use S06.6X6A for initial encounter
  • BILLABLE CODE - Use S06.6X6D for subsequent encounter
  • BILLABLE CODE - Use S06.6X6S for sequela
  • NON-BILLABLE CODE - S06.6X7 for Traumatic subarachnoid hemorrhage with loss of consciousness of any duration with death due to brain injury prior to regaining consciousness
  • BILLABLE CODE - Use S06.6X7A for initial encounter
  • NON-BILLABLE CODE - S06.6X8 for Traumatic subarachnoid hemorrhage with loss of consciousness of any duration with death due to other cause prior to regaining consciousness
  • BILLABLE CODE - Use S06.6X8A for initial encounter
  • NON-BILLABLE CODE - S06.6X9 for Traumatic subarachnoid hemorrhage with loss of consciousness of unspecified duration
  • BILLABLE CODE - Use S06.6X9A for initial encounter
  • BILLABLE CODE - Use S06.6X9D for subsequent encounter
  • BILLABLE CODE - Use S06.6X9S for sequela

Clinical Information

Information for Patients


Traumatic Brain Injury

Also called: Acquired brain injury, TBI

Traumatic brain injury (TBI) happens when a bump, blow, jolt, or other head injury causes damage to the brain. Every year, millions of people in the U.S. suffer brain injuries. More than half are bad enough that people must go to the hospital. The worst injuries can lead to permanent brain damage or death. Half of all TBIs are from motor vehicle accidents. Military personnel in combat zones are also at risk.

Symptoms of a TBI may not appear until days or weeks following the injury. A concussion is the mildest type. It can cause a headache or neck pain, nausea, ringing in the ears, dizziness, and tiredness. People with a moderate or severe TBI may have those, plus other symptoms:

Health care professionals use a neurological exam and imaging tests to assess TBI. Serious traumatic brain injuries need emergency treatment. Treatment and outcome depend on how severe the injury is. TBI can cause a wide range of changes affecting thinking, sensation, language, or emotions. TBI can be associated with post-traumatic stress disorder. People with severe injuries usually need rehabilitation.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)