ICD-10 Y09
Billable / SpecificAssault by unspecified means
About ICD-10-CM Y09
ICD-10-CM code Y09 represents Assault by unspecified means. This is a billable/specific code in the External Causes of Morbidity chapter (block Y09). The 2026 edition of ICD-10-CM Y09 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Y09. Per CMS ICD-10-CM Tabular 2026.
- Assassination (attempted) NOS
- Homicide (attempted) NOS
- Manslaughter (attempted) NOS
- Murder (attempted) NOS
Medicare LCD Coverage for Y09
Local Coverage Determinations (LCDs) from CMS MACs that list Y09 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Y09.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but Y09 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with Y09
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert Y09 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| Y09 | E9689 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Y09
Other codes in section X92-Y09 (Assault).
ICD-10 Y09, Billing FAQ
Is ICD-10 code Y09 billable? +
Yes, Y09 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to Y09? +
ICD-10 Y09 includes: Assassination (attempted) NOS; Homicide (attempted) NOS; Manslaughter (attempted) NOS, and 1 more clinical synonyms.
What ICD-9 codes does Y09 map to? +
Per CMS GEMs, Y09 maps to ICD-9 codes: E9689. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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