External causes of morbidity
34 sections · 3,636 total codes · 495 billable
About Chapter V00-Y99
ICD-10-CM Chapter V00-Y99 covers external causes of morbidity. The chapter contains 34 sections (code blocks) and 3,636 total codes - 495 are billable on a claim, the rest are non-billable headers used to organize the hierarchy.
Browse below by section, or jump straight to the most-billed codes in this chapter. Every code page includes Type 1/2 Excludes, Inclusion Terms, ICD-9 GEMs crosswalk, HCC mapping, LCD coverage, and payer-specific policies.
Most-Searched Diagnoses in This Chapter
Codes with the most LCD coverage, payer policies, and CPT linkages, proxies for what billers look up most.
All Sections in V00-Y99
Each section is a code block (e.g. E08-E13 = Diabetes mellitus). Click a section to see all codes inside.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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