G05.3 – Encephalitis and encephalomyelitis in diseases classified elsewhere
ICD-10-CM 2027 diagnosis code · Inflammatory diseases of the central nervous system
- Code
G05.3(claims format:G053)- Description
- Encephalitis and encephalomyelitis in diseases classified elsewhere
- Short description
- Encephalitis and encephalomyelitis in diseases classd elswhr
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G00-G09 Inflammatory diseases of the central nervous system
- Parent codes
- G05
Notes for G05.3
- Meningoencephalitis in diseases classified elsewhere
- underlying disease
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
G05 – Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
- 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)
- 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)
Index terms for G05.3
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Encephalitis, otitic NEC
- Encephalitis, trichinosis
- Encephalitis, in, poliovirus
- Meningoencephalitis, parasitic NEC
- Encephalitis, in, parasitic disease NEC
- Encephalitis, in, infectious disease NEC
- Encephalitis, in, African trypanosomiasis
- Encephalitis, lupus erythematosus, systemic
- Encephalitis, in, systemic lupus erythematosus
- Encephalitis, due to, human immunodeficiency virus
- Encephalomyelitis, in diseases classified elsewhere
- Meningoencephalitis, in, diseases classified elsewhere
Related codes in G05
Frequently asked questions
What is ICD-10 code G05.3?
G05.3 is the ICD-10-CM code for encephalitis and encephalomyelitis in diseases classified elsewhere, in the block G00-G09 (Inflammatory diseases of the central nervous system).
Is G05.3 a billable code?
Yes. G05.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does G05.3 belong to?
It belongs to category G05 – Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.