ICD-10-CM Alphabetic Index · FY 2026 6 Entries

Leukoencephalitis in the ICD-10-CM Index ICD-10-CM

The main term Leukoencephalitis carries 6 index entries pointing to 5 ICD-10-CM codes. The default entry is G04.81, 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

Index Entries

Codes Referenced

G04.81

Default Code

Letter

6 of 6 shown

ICD-10-CM

Index Entries Under Leukoencephalitis 6 entries · 5 codes

Leukoencephalitis G04.81

acute (subacute) hemorrhagic G36.1

postimmunization or postvaccinal G04.02

postinfectious G04.01

subacute sclerosing A81.1

van Bogaert's (sclerosing) A81.1

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Related Index Terms

All index terms starting with L Index to Diseases and Injuries ICD-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.