Neoplasms
21 sections · 2,178 total codes · 1,727 billable
About Chapter C00-D49
ICD-10-CM Chapter C00-D49 covers neoplasms. The chapter contains 21 sections (code blocks) and 2,178 total codes - 1,727 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 C00-D49
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 July 16, 2026.
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