ICD-10-CM Alphabetic Index · FY 2026 12 Entries
Diverticulosis in the ICD-10-CM Index ICD-10-CM
The main term Diverticulosis carries 12 index entries pointing to 8 ICD-10-CM codes. The default entry is K57.90, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
12
Index Entries
8
Codes Referenced
K57.90
Default Code
D
Letter
12 of 12 shown
ICD-10-CM
Index Entries Under Diverticulosis 12 entries · 8 codes
Diverticulosis K57.90
with bleeding K57.91
large intestine K57.30
with
bleeding K57.31
small intestine K57.50
with bleeding K57.51
small intestine K57.10
with
bleeding K57.11
large intestine K57.50
with bleeding K57.51
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
