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S06.89A ICD-10-CM Code: Other specified intracranial injury with loss of consciousness status unknown

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FY 2026 Apr update / Injury, poisoning and certain other consequences of external causes (S00-T88) / Injuries to the head (S00-S09)

S06.89A

Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidance

Other specified intracranial injury with loss of consciousness status unknown

Other specified intracranial injury with loss of consciousness status unknown

CMS-HCC V28

0

0

RAF 0

CMS-HCC V24

0

0

RAF 0

ACA/HHS

0

0

RAF 0

ESRD/PACE

0

0

RAF 0

RXHCC

0

0

RAF 0

Code Trumping

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Code Book Path

Official
S06.8Other specified intracranial injuries
S06.89Other specified intracranial injury
S06.89AOther specified intracranial injury with loss of consciousness status unknown

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for S06.89A in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for S06.89A in this effective period.

Related Child Codes

Official
S06.89AAOther specified intracranial injury with loss of consciousness status unknown, initial encounter
S06.89ADOther specified intracranial injury with loss of consciousness status unknown, subsequent encounter
S06.89ASOther specified intracranial injury with loss of consciousness status unknown, sequela

Includes

Official

ICD-10-CM does not list Includes notes for S06.89A in this effective period.

Excludes 1

Official
  • concussion (S06.0X-)

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for S06.89A in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for S06.89A in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for S06.89A in this effective period.

Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.

What This Code Means

S06.89A is the ICD-10-CM diagnosis code for other specified intracranial injury with loss of consciousness status unknown. S06.89A sits in the ICD-10-CM chapter for injury, poisoning and certain other consequences of external causes (s00-t88), within the section covering injuries to the head (s00-s09).

Header codes like S06.89A cannot be reported on claims directly, they organize child codes that share clinical context but the actual diagnosis must be coded to the highest level of specificity supported by the documentation. Coders should look at S06.89A's child codes and select the one that matches the patient's documented presentation, since payers reject header codes submitted as the primary diagnosis. For risk adjustment workflows, header codes never contribute to a Medicare Advantage member's RAF score on their own; only billable child codes that happen to map to a payment HCC affect risk-adjusted plan payments.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for S06.89A sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Child Codes

Code Hierarchy

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