ICD-10-CM Alphabetic Index · FY 2026 29 Entries
Diverticulitis in the ICD-10-CM Index ICD-10-CM
The main term Diverticulitis (acute) carries 29 index entries pointing to 17 ICD-10-CM codes. The default entry is K57.92, 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
29
Index Entries
17
Codes Referenced
K57.92
Default Code
D
Letter
29 of 29 shown
ICD-10-CM
Index Entries Under Diverticulitis 29 entries · 17 codes
Diverticulitis (acute) K57.92
bladder see Cystitis
ileum see Diverticulitis, intestine, small
intestine K57.92
with
abscess, perforation K57.80
with bleeding K57.81
bleeding K57.93
congenital Q43.8
large K57.32
with
abscess, perforation K57.20
with bleeding K57.21
bleeding K57.33
small intestine K57.52
with
abscess, perforation K57.40
with bleeding K57.41
bleeding K57.53
small K57.12
with
abscess, perforation K57.00
with bleeding K57.01
bleeding K57.13
large intestine K57.52
with
abscess, perforation K57.40
with bleeding K57.41
bleeding K57.53
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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.
