Y08 ICD-10-CM Code: Assault by other specified means
Y08 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · free HCC coding tools
HCC Buddy Code Card
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FY 2026 Apr update / External causes of morbidity (V00-Y99) / Assault (X92-Y09)
Y08
Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidanceAssault by other specified means
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for Y08. Check the code and parent instructions in the Code Book.
Excludes 2
OfficialNo Excludes 2 notes are included in this display for Y08. Check the code and parent instructions in the Code Book.
Related Codes
Includes
Official- homicideInherited from X92-Y09
- injuries inflicted by another person with intent to injure or kill, by any meansInherited from X92-Y09
Excludes 1
Official- injuries due to legal intervention (Y35.-)Inherited from X92-Y09
- injuries due to operations of war (Y36.-)Inherited from X92-Y09
- injuries due to terrorism (Y38.-)Inherited from X92-Y09
Code First
OfficialNo Code First sequencing instructions are included in this display for Y08. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for Y08. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for Y08. Check the code and parent instructions in the Code Book.
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
- Code
- Y08
- Description
- Assault by other specified means
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- No
- Payment year
- 2026
Coder workflow notes
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What This Code Means
Y08 is the ICD-10-CM diagnosis code for assault by other specified means. Y08 sits in the ICD-10-CM chapter for external causes of morbidity (v00-y99), within the section covering assault (x92-y09).
Header codes like Y08 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for Y08 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.