Non-Billable / Non-Specific Code
ICD-10-CM X99 is the diagnosis code for Assault by sharp object. This code falls under the section "Assault" within Chapter 20 — External causes of morbidity (V00-Y99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as X99. They are mutually exclusive:
Understanding where X99 sits in the ICD-10-CM classification helps ensure proper coding:
No, X99 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
X99 is the ICD-10-CM diagnosis code for "Assault by sharp object". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
X99 is located in Section X92-Y09 — "Assault" within Chapter 20 of the ICD-10-CM Tabular List.
X99 has 5 sub-code(s) that provide more specific detail: X99.0, X99.1, X99.2, X99.8, X99.9.
Use X99 when the patients documented diagnosis matches "Assault by sharp object" 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 sharp object is X99.
No, X99 is non-billable. Use a more specific sub-code for primary diagnosis billing.
X99 is in Chapter 20 of the ICD-10-CM Tabular List.
Type 1 Excludes for X99 include: assault by strike by sports equipment (Y08.0-).
Yes, X99 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.