2026 ICD-10-CM Diagnosis Code S06.5X9DTraumatic subdural hemorrhage with loss of consciousness of unspecified duration, subsequent encounter
S06.5X9D is a billable ICD-10-CM diagnosis code for traumatic subdural hemorrhage with loss of consciousness of unspecified duration, subsequent encounter. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 949 through 950. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Traumatic brain injury (TBI); concussion, subsequent encounter.
Code Identity
Code Classification
Present on Admission (POA)Billing
S06.5X9D 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.
- Intracranial hematoma following injury
- Intracranial hemorrhage following injury with brief loss of consciousness
- Intracranial hemorrhage following injury with loss of consciousness
- Intracranial hemorrhage following injury with open intracranial wound AND loss of consciousness
- Intracranial subdural hemorrhage following injury with open intracranial wound and loss of consciousness
- Intracranial subdural hemorrhage with open intracranial wound
- Traumatic brain injury with brief loss of consciousness
- Traumatic hematoma of subdural space of neuraxis
- Traumatic intracranial subdural hematoma
- Traumatic intracranial subdural hematoma with brief loss of consciousness
- Traumatic intracranial subdural hemorrhage following open wound of head
- Traumatic subdural intracranial hemorrhage
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
Bleeding Disorders
Normally, if you get hurt, your body forms a blood clot to stop the bleeding. For blood to clot, your body needs cells called platelets and proteins known as clotting factors. If you have a bleeding disorder, you either do not have enough platelets or clotting factors or they don't work the way they should.
Read the full article at MedlinePlus
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Convert S06.5X9D to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S06.5X9DOverview
Is S06.5X9D a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report traumatic subdural hemorrhage with loss of consciousness of unspecified duration, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character D in S06.5X9D mean?
The final character D marks a subsequent encounter: use it for routine care while the traumatic subdural hemorrhage with loss of consciousness of unspecified duration is healing, after active treatment has ended.
What MS-DRG does S06.5X9D group to?
When traumatic subdural hemorrhage with loss of consciousness of unspecified duration, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 949, 950, with relative weights from 0.6277 to 1.1897 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S06.5X9D 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 traumatic subdural hemorrhage with loss of consciousness of unspecified duration, subsequent encounter on inpatient claims.
What is the ICD-9 equivalent of S06.5X9D?
Under the General Equivalence Mappings, traumatic subdural hemorrhage with loss of consciousness of unspecified duration, subsequent encounter converts to ICD-9-CM V58.89 (other specfied aftercare). 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.
