ICD-10-CM Alphabetic Index · FY 2026 15 Entries

Fatigue in the ICD-10-CM Index ICD-10-CM

The main term Fatigue carries 15 index entries pointing to 9 ICD-10-CM codes. The default entry is R53.83, 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
15
Index Entries
9
Codes Referenced
R53.83
Default Code
F
Letter
15 of 15 shown
ICD-10-CM

Index Entries Under Fatigue 15 entries · 9 codes

Fatigue R53.83
auditory deafness see Deafness
chronic R53.82
combat F43.0
general R53.83
psychogenic F48.8
heat (transient) T67.6 Non-billable
muscle M62.89
myocardium see Failure, heart
nervous, neurosis F48.8
operational F48.8
psychogenic (general) F48.8
senile R54
voice R49.8

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Related Index Terms

All index terms starting with FIndex to Diseases and InjuriesICD-10-CM Code Lookup

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.