ICD-10-CM Y09 is the diagnosis code for Assault by unspecified means. This code falls under the section "Assault" within Chapter 20 — External causes of morbidity (V00-Y99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where Y09 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Y09 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Y09 is the ICD-10-CM diagnosis code for "Assault by unspecified means". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
Y09 is located in Section X92-Y09 — "Assault" within Chapter 20 of the ICD-10-CM Tabular List.
Use Y09 when the patients documented diagnosis matches "Assault by unspecified means" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Assault by unspecified means is Y09.
Yes, Y09 can be used as a primary diagnosis code since it is billable and specific.
Y09 is in Chapter 20 of the ICD-10-CM Tabular List.
Yes, Y09 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.