S06.811A: Injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 30 minutes or less, initial encounter
S06.811A is a billable, specific ICD-10-CM code for injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 30 minutes or less, initial encounter. It is valid for submission on a claim.
Check S06.811A with the rest of the claim: free scrubber7th character "A": initial encounter
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
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Injury of right internal carotid artery, intracranial portion, not elsewhere classified with brief loss of consciousness
Other codes that can never be billed with S06.811A
Their own Excludes1 notes name this code, so the conflict is not listed above.
- 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
- P52Intracranial nontraumatic hemorrhage of newborn
- 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
Risk adjustment
S06.811A risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 398 Major Head Injury with Loss of Consciousness < 1 Hour or Unspecified0.199 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
S06.811A is named in 12 Medicare coverage policies: 12 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
- A56612Billing and Coding: CT of the Head
- A56631Billing and Coding: Thoracic Aortography and Carotid, Vertebral, and Subclavian Angiography
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under S06.811
- S06.811DInjury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 30 minutes or less, subsequent encounter
- S06.811SInjury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 30 minutes or less, sequela