ICD-10-CM diagnosis code
S06.9X6D Unspecified intracranial injury with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, subsequent encounter
- Billable
- Yes, a complete code (FY2026)
- Category
- S06 Intracranial injury
Encounter (7th character)
This code is for a subsequent encounter: active treatment is complete and the patient is being seen during healing or recovery (for example a cast change, medication adjustment or follow-up visit).
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Other codes in S06
569 complete codes in this category.
- S06.9X4DUnspecified intracranial injury with loss of consciousness of 6 hours to 24 hours, subsequent encounter
- S06.9X4SUnspecified intracranial injury with loss of consciousness of 6 hours to 24 hours, sequela
- S06.9X5AUnspecified intracranial injury with loss of consciousness greater than 24 hours with return to pre-existing conscious level, initial encounter
- S06.9X5DUnspecified intracranial injury with loss of consciousness greater than 24 hours with return to pre-existing conscious level, subsequent encounter
- S06.9X5SUnspecified intracranial injury with loss of consciousness greater than 24 hours with return to pre-existing conscious level, sequela
- S06.9X6AUnspecified intracranial injury with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, initial encounter
- S06.9X6DUnspecified intracranial injury with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, subsequent encounter
- S06.9X6SUnspecified intracranial injury with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, sequela
- S06.9X7AUnspecified intracranial injury with loss of consciousness of any duration with death due to brain injury prior to regaining consciousness, initial encounter
- S06.9X8AUnspecified intracranial injury with loss of consciousness of any duration with death due to other cause prior to regaining consciousness, initial encounter
- S06.9X9AUnspecified intracranial injury with loss of consciousness of unspecified duration, initial encounter
- S06.9X9DUnspecified intracranial injury with loss of consciousness of unspecified duration, subsequent encounter
Documentation tips
- Make sure the note supports every element of the title, “Unspecified intracranial injury with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, subsequent encounter”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to S06.
The international WHO ICD-10 also has S06, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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