2025
ICD-10-CM
Diagnosis
Code

G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere

  • Non-billable
  • 2016–2025

G05 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere.

Code first

  • Underlying disease, such as:

    • Congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)

    • Cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)

    • Encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)

    • Eosinophilic meningoencephalitis (B83.2)

    • Human immunodeficiency virus [HIV] disease (B20)

    • Poliovirus (A80.-)

    • Suppurative otitis media (H66.01-H66.4)

    • Systemic lupus erythematosus (M32.19)

    • Trichinellosis (B75)

Type 1 excludes

  • Adenoviral encephalitis, myelitis and encephalomyelitis (A85.1)

  • Encephalitis, myelitis and encephalomyelitis (in) measles (B05.0)

  • Enteroviral encephalitis, myelitis and encephalomyelitis (A85.0)

  • Herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4)

  • Listerial encephalitis, myelitis and encephalomyelitis (A32.12)

  • Meningococcal encephalitis, myelitis and encephalomyelitis (A39.81)

  • Mumps encephalitis, myelitis and encephalomyelitis (B26.2)

  • Postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-)

  • Rubella encephalitis, myelitis and encephalomyelitis (B06.01)

  • Toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2)

  • Zoster encephalitis, myelitis and encephalomyelitis (B02.0)

Codes

Versions

  1. 2025

    No changes

  2. 2024

    Code changed

    • Code first

        • underlying disease, such as:
        • congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)
        • cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)
        • encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)
        • eosinophilic meningoencephalitis (B83.2)
        • human immunodeficiency virus [HIV] disease (B20)
        • poliovirus (A80.-)
        • suppurative otitis media (H66.01-H66.4)
        • trichinellosis (B75)
        • underlying disease, such as:
        • congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)
        • cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)
        • encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)
        • eosinophilic meningoencephalitis (B83.2)
        • human immunodeficiency virus [HIV] disease (B20)
        • poliovirus (A80.-)
        • suppurative otitis media (H66.01-H66.4)
        • systemic lupus erythematosus (M32.19)
        • trichinellosis (B75)
  3. 2023

    No changes

  4. 2022

    Code changed

    • Code first

        • underlying disease, such as:
        • human immunodeficiency virus [HIV] disease (B20)
        • poliovirus (A80.-)
        • suppurative otitis media (H66.01-H66.4)
        • trichinellosis (B75)
        • underlying disease, such as:
        • congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)
        • cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)
        • encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)
        • eosinophilic meningoencephalitis (B83.2)
        • human immunodeficiency virus [HIV] disease (B20)
        • poliovirus (A80.-)
        • suppurative otitis media (H66.01-H66.4)
        • trichinellosis (B75)
    • Type 1 excludes

        • adenoviral encephalitis, myelitis and encephalomyelitis (A85.1)
        • congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)
        • cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)
        • encephalitis, myelitis and encephalomyelitis (in) measles (B05.0)
        • encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)
        • enteroviral encephalitis, myelitis and encephalomyelitis (A85.0)
        • eosinophilic meningoencephalitis (B83.2)
        • herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4)
        • listerial encephalitis, myelitis and encephalomyelitis (A32.12)
        • meningococcal encephalitis, myelitis and encephalomyelitis (A39.81)
        • mumps encephalitis, myelitis and encephalomyelitis (B26.2)
        • postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-)
        • rubella encephalitis, myelitis and encephalomyelitis (B06.01)
        • toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2)
        • zoster encephalitis, myelitis and encephalomyelitis (B02.0)
        • adenoviral encephalitis, myelitis and encephalomyelitis (A85.1)
        • encephalitis, myelitis and encephalomyelitis (in) measles (B05.0)
        • enteroviral encephalitis, myelitis and encephalomyelitis (A85.0)
        • herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4)
        • listerial encephalitis, myelitis and encephalomyelitis (A32.12)
        • meningococcal encephalitis, myelitis and encephalomyelitis (A39.81)
        • mumps encephalitis, myelitis and encephalomyelitis (B26.2)
        • postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-)
        • rubella encephalitis, myelitis and encephalomyelitis (B06.01)
        • toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2)
        • zoster encephalitis, myelitis and encephalomyelitis (B02.0)
  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    No changes

  9. 2017

    No changes

  10. 2016

    New code