ICD-10-CM Alphabetic Index · FY 2026 6 Entries
Ileitis in the ICD-10-CM Index ICD-10-CM
The main term Ileitis (chronic) (noninfectious) carries 6 index entries pointing to 2 ICD-10-CM codes. The default entry is K52.9, 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
6
Index Entries
2
Codes Referenced
K52.9
Default Code
I
Letter
6 of 6 shown
ICD-10-CM
Index Entries Under Ileitis 6 entries · 2 codes
Ileitis (chronic) (noninfectious) K52.9
backwash see Pancolitis, ulcerative (chronic)
infectious A09
regional (ulcerative) see Enteritis, regional, small intestine
segmental see Enteritis, regional
terminal (ulcerative) see Enteritis, regional, small intestine
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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.
