Home / ICD-10-CM / Chapter 20 / Y09

Y09 Assault by unspecified means

ICD-10-CM category Y09 sits in Chapter 20 (External causes of morbidity, V00-Y99). It contains 1 billable code for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

The category code Y09 itself is billable for FY2027: no more specific code exists under it.

Billable codes in Y09

CodeDescription
Y09Assault by unspecified means

Search within ICD-10-CM for Y09 and related codes

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