Appendix 1 - ICD10CA codes used to identify potential cases
A170 Tuberculous meningitis
A203 Plague meningitis
A321 Listerial meningitis and meningoencephalitis
A390 Meningococcal meningitis
A870 Enteroviral meningitis
A871 Adenoviral meningitis
A872 Lymphocytic choriomeningitis
A878 Other viral meningitis
A879 Viral meningitis, unspecified
B003 Herpesviral meningitis
B010 Varicella meningitis
B021 Zoster meningitis
B051 Measles complicated by meningitis
B261 Mumps meningitis
B375 Candidal meningitis
B384 Coccidioidomycosis meningitis
G000 Haemophilus meningitis
G001 Pneumococcal meningitis
G002 Streptococcal meningitis
G003 Staphylococcal meningitis
G008 Other bacterial meningitis
G009 Bacterial meningitis, unspecified G00 Bacterial meningitis, not elsewhere classified
G01 Meningitis in bacterial diseases classified elsewhere
G020* Meningitis in viral diseases classified elsewhere
G021* Meningitis in mycoses
G028* Meningitis in other specified infectious and parasitic diseases classified elsewhere
G030 Nonpyogenic meningitis
G031 Chronic meningitis
G032 Benign recurrent meningitis [Mollaret]
G038 Meningitis due to other specified causes
G039 Meningitis, unspecified
A811 Subacute sclerosing panencephalitis
A830 Japanese encephalitis
A831 Western equine encephalitis
A832 Eastern equine encephalitis
A833 St Louis encephalitis
A834 Australian encephalitis
A835 California encephalitis
A838 Other mosquito-borne viral encephalitis
A839 Mosquito-borne viral encephalitis, unspecified
A840 Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis]
A841 Central European tick-borne encephalitis
A848 Other tick-borne viral encephalitis
A849 Tick-borne viral encephalitis, unspecified
A850 Enteroviral encephalitis
A851 Adenoviral encephalitis
A852 Arthropod-borne viral encephalitis, unspecified
A858 Other specified viral encephalitis
A86 Unspecified viral encephalitis
A922 Venezuelan equine fever
A923 West Nile virus infection
B004 Herpesviral encephalitis
B011 Varicella encephalitis
B020 Zoster encephalitis
B050 Measles complicated by encephalitis
B262 Mumps encephalitis
B582 Toxoplasma meningoencephalitis
G040 Acute disseminated encephalitis
G042 Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified
G048 Other encephalitis, myelitis and encephalomyelitis
G049 Encephalitis, myelitis and encephalomyelitis, unspecified
G050* Encephalitis, myelitis and encephalomyelitis in bacterial diseases classified elsewhere
G05.1* Encephalitis, myelitis and encephalomyelitis in viral diseases classified elsewhere
G052* Encephalitis, myelitis and encephalomyelitis in other infectious and parasitic diseases classified elsewhere
G058* Encephalitis, myelitis and encephalomyelitis in other diseases classified elsewhere