⚠️ Chapter 20 · V00-Y99
External Causes Diagnosis Codes
External cause codes describe how and where injuries and health conditions occurred. They're used alongside injury codes to document circumstances like falls, vehicle accidents, and accidental poisonings. They're important for public health tracking.
About This Chapter
Chapter 20 of the ICD-10-CM classification covers external causes of morbidity, spanning codes V00-Y99. These codes are used by healthcare providers to document diagnoses in your electronic health record (EHR), on insurance claims, and on medical bills.
Why this matters: If you see a code starting with V on your medical bill or health records, it likely falls in this chapter. Understanding what chapter your code belongs to can help you make sense of your diagnosis and ask better questions at your next appointment.
Diagnosis Codes in This Chapter
We're currently building out pages for codes in this chapter. Check back soon, or browse our full diagnosis code directory.