S06.6X5 — Traumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours with return to pre-existing conscious level
S06.6X5 is a non-billable header ICD-10-CM code for traumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours with return to pre-existing conscious level. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category S06, except as noted below
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with S06.6X5
These codes carry an Excludes1 note pointing at S06.6X5. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S06.6X5 alone.
- G31.84Mild cognitive impairment of uncertain or unknown etiology
- I69Sequelae of cerebrovascular disease
- I69.8Sequelae of other cerebrovascular diseases
- I69.9Sequelae of unspecified cerebrovascular diseases
- S09.0Injury of blood vessels of head, not elsewhere classified
- S09.0XXAInjury of blood vessels of head, not elsewhere classified, initial encounter
- S09.0XXDInjury of blood vessels of head, not elsewhere classified, subsequent encounter
- S09.0XXSInjury of blood vessels of head, not elsewhere classified, sequela
Risk adjustment
S06.6X5 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
S06.6X5 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead S06.6X5
3 child codes. Green means billable.
- S06.6X5ATraumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours with return to pre-existing conscious level, initial encounter
- S06.6X5DTraumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours with return to pre-existing conscious level, subsequent encounter
- S06.6X5STraumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours with return to pre-existing conscious level, sequela
Related codes at this level
Codes that share S06.6X. If S06.6X5 is not quite right, the correct code is usually one of these.
- S06.6X0Traumatic subarachnoid hemorrhage without loss of consciousness
- S06.6X1Traumatic subarachnoid hemorrhage with loss of consciousness of 30 minutes or less
- S06.6X2Traumatic subarachnoid hemorrhage with loss of consciousness of 31 minutes to 59 minutes
- S06.6X3Traumatic subarachnoid hemorrhage with loss of consciousness of 1 hour to 5 hours 59 minutes
- S06.6X4Traumatic subarachnoid hemorrhage with loss of consciousness of 6 hours to 24 hours
- S06.6X6Traumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving
- S06.6X7Traumatic subarachnoid hemorrhage with loss of consciousness of any duration with death due to brain injury prior to regaining consciousness
- S06.6X8Traumatic subarachnoid hemorrhage with loss of consciousness of any duration with death due to other cause prior to regaining consciousness
- S06.6XATraumatic subarachnoid hemorrhage with loss of consciousness status unknown
- S06.6X9Traumatic subarachnoid hemorrhage with loss of consciousness of unspecified duration
Questions about S06.6X5
- Is S06.6X5 a billable ICD-10-CM code?
- No. S06.6X5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S06.6X5 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the head (S00-S09).
- What cannot be coded together with S06.6X5?
- S06.6X5 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above S06.6X5 (S06) and apply to it just the same.