Is S06.6X2S a billable ICD-10-CM code?

Yes. S06.6X2S is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does S06.6X2S 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 S06.6X2S?

S06.6X2S 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 S06.6X2S (S06) and apply to it just the same.

S06.6X2S

S06.6X2S — Traumatic subarachnoid hemorrhage with loss of consciousness of 31 minutes to 59 minutes, sequela

Billable / specific codeICD-10-CMPOA exempt

S06.6X2S is a billable, specific ICD-10-CM code for traumatic subarachnoid hemorrhage with loss of consciousness of 31 minutes to 59 minutes, sequela. It is valid for submission on a claim.

7th character "S" — sequela

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

Excludes1 inherited from the categories above S06.6X2S

These are not written on S06.6X2S, but they bind it: a note on a category applies to every code beneath it. Billing S06.6X2S with anything listed here is a denial.

Written on S06 — Intracranial injury

head injury NOS (S09.90)

Other codes that can never be billed with S06.6X2S

These codes carry an Excludes1 note pointing at S06.6X2S. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S06.6X2S 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

S06.6X2S 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.

Medicare coverage

S06.6X2S is named in 18 Medicare coverage policies — 18 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A53057Billing and Coding: Home Health Occupational Therapy
A53064Billing and Coding: Outpatient Occupational Therapy
A53065Billing and Coding: Outpatient Physical Therapy
A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders

Code history

S06.6X2S has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share S06.6X2. If S06.6X2S is not quite right, the correct code is usually one of these.

Questions about S06.6X2S

Is S06.6X2S a billable ICD-10-CM code?: Yes. S06.6X2S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S06.6X2S 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 S06.6X2S?: S06.6X2S 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 S06.6X2S (S06) and apply to it just the same.