2026 ICD-10-CM Diagnosis Code S06.9X9SUnspecified intracranial injury with loss of consciousness of unspecified duration, sequela
S06.9X9S is a billable ICD-10-CM diagnosis code for unspecified intracranial injury with loss of consciousness of unspecified duration, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S06.9X9S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Brain injury with open intracranial wound AND loss of consciousness
- Closed fracture of base of skull
- Closed fracture of base of skull with intracranial injury
- Closed fracture of base of skull with loss of consciousness
- Closed fracture of vault of skull
- Closed fracture of vault of skull with loss of consciousness
- Closed skull fracture with intracranial injury
- Intracranial injury with loss of consciousness
- Intracranial injury with prolonged coma
- Intracranial injury with prolonged coma with open wound
- Intracranial injury with prolonged coma without open wound
- Open fracture of vault of skull
- Open fracture of vault of skull with loss of consciousness
- Open fracture vault of skull with intracranial injury
- Sequela of intracranial injury
- Traumatic brain injury with brief loss of consciousness
- Traumatic brain injury with loss of consciousness
- Traumatic brain injury with moderate loss of consciousness
- Traumatic brain injury with prolonged loss of consciousness
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Intracranial injury (S06). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Traumatic Brain Injury
Traumatic brain injury (TBI) is a sudden injury that causes damage to the brain. It may happen when there is a blow, bump, or jolt to the head. This is a closed head injury. A TBI can also happen when an object penetrates the skull. This is a penetrating injury.
The full article covers:
- What is traumatic brain injury (TBI)?
- What causes traumatic brain injury (TBI)?
- Who is at risk for traumatic brain injury (TBI)?
- What are the symptoms of traumatic brain injury (TBI)?
- How is traumatic brain injury (TBI) diagnosed?
- What are the treatments for traumatic brain injury (TBI)?
- Can traumatic brain injury (TBI) be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S06.9X9S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S06.9X9SOverview
Is S06.9X9S a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified intracranial injury with loss of consciousness of unspecified duration, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S06.9X9S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the unspecified intracranial injury with loss of consciousness of unspecified duration itself has resolved, not the original event.
Is S06.9X9S exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for unspecified intracranial injury with loss of consciousness of unspecified duration, sequela on inpatient claims.
What is the ICD-9 equivalent of S06.9X9S?
Under the General Equivalence Mappings, unspecified intracranial injury with loss of consciousness of unspecified duration, sequela converts to ICD-9-CM 907.0 (lt eff intracranial inj). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
