S06.81AA — Injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown, initial encounter
S06.81AA is a billable, specific ICD-10-CM code for injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown, initial encounter. It is valid for submission on a claim.
7th 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 NOS
Risk adjustment
S06.81AA risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 399 Major Head Injury without Loss of Consciousness0.199 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.
Medicare coverage
S06.81AA is named in 9 Medicare coverage policies — 9 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
- A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
- A56612Billing and Coding: CT of the Head
- A56771Billing and Coding: Special Electroencephalography
Related codes at this level
Codes that share S06.81A. If S06.81AA is not quite right, the correct code is usually one of these.
- S06.81ADInjury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown, subsequent encounter
- S06.81ASInjury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown, sequela
Questions about S06.81AA
- Is S06.81AA a billable ICD-10-CM code?
- Yes. S06.81AA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S06.81AA 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).