S06.9XAA — Unspecified intracranial injury with loss of consciousness status unknown, initial encounter
S06.9XAA is a billable, specific ICD-10-CM code for unspecified intracranial injury 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
Risk adjustment
S06.9XAA 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
S06.9XAA is named in 8 Medicare coverage policies — 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53064Billing and Coding: Outpatient Occupational Therapy
- A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
- A56771Billing and Coding: Special Electroencephalography
- A56937Billing and Coding: Psychiatry and Psychology Services
Related codes at this level
Codes that share S06.9XA. If S06.9XAA is not quite right, the correct code is usually one of these.
Questions about S06.9XAA
- Is S06.9XAA a billable ICD-10-CM code?
- Yes. S06.9XAA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S06.9XAA 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).