ICD-10-CM Alphabetic Index · FY 2026 34 Entries
Gastritis in the ICD-10-CM Index ICD-10-CM
The main term Gastritis (simple) carries 34 index entries pointing to 20 ICD-10-CM codes. The default entry is K29.70, 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
34
Index Entries
20
Codes Referenced
K29.70
Default Code
G
Letter
34 of 34 shown
ICD-10-CM
Index Entries Under Gastritis 34 entries · 20 codes
Gastritis (simple) K29.70
with bleeding K29.71
acute (erosive) K29.00
with bleeding K29.01
alcoholic K29.20
with bleeding K29.21
allergic K29.60
with bleeding K29.61
atrophic (chronic) K29.40
with bleeding K29.41
chronic (antral) (fundal) K29.50
with bleeding K29.51
atrophic K29.40
with bleeding K29.41
superficial K29.30
with bleeding K29.31
dietary counseling and surveillance Z71.3
due to diet deficiency E63.9
eosinophilic K52.81
giant hypertrophic K29.60
with bleeding K29.61
granulomatous K29.60
with bleeding K29.61
hypertrophic (mucosa) K29.60
with bleeding K29.61
nervous F54
spastic K29.60
with bleeding K29.61
specified NEC K29.60
with bleeding K29.61
superficial chronic K29.30
with bleeding K29.31
tuberculous A18.83
viral NEC A08.4
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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.
