ICD-10-CM Alphabetic Index · FY 2026 13 Entries
Esophagitis in the ICD-10-CM Index ICD-10-CM
The main term Esophagitis (acute) (alkaline) (chemical) (chronic) (infectional) (necrotic) (peptic) (postoperative) (without bleeding) carries 13 index entries pointing to 11 ICD-10-CM codes. The default entry is K20.90, 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
13
Index Entries
11
Codes Referenced
K20.90
Default Code
E
Letter
13 of 13 shown
ICD-10-CM
Index Entries Under Esophagitis 13 entries · 11 codes
Esophagitis (acute) (alkaline) (chemical) (chronic) (infectional) (necrotic) (peptic) (postoperative) (without bleeding) K20.90
with bleeding K20.91
candidal B37.81
due to gastrointestinal reflux disease (without bleeding) K21.00
with bleeding K21.01
eosinophilic K20.0
reflux K21.00
with bleeding K21.01
specified NEC (without bleeding) K20.80
with bleeding K20.81
tuberculous A18.83
ulcerative K22.10
with bleeding K22.11
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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.
