Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis
Billable / specific
G04.02 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Applicable to
- Encephalitis, post immunization
- Encephalomyelitis, post immunization
Includes (from G04)
- acute ascending myelitis
- meningoencephalitis
- meningomyelitis
Excludes1
Not coded here — never report together with this code.
Excludes2
Not included here — may be reported together when both conditions exist.
- certain conditions originating in the perinatal period (P04-P96) (from G04)
- certain infectious and parasitic diseases (A00-B99) (from G04)
- complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G04)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G04)
- endocrine, nutritional and metabolic diseases (E00-E88) (from G04)
- injury, poisoning and certain other consequences of external causes (S00-T88) (from G04)
- neoplasms (C00-D49) (from G04)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G04)
- acute transverse myelitis (G37.3) (from G04)
- alcoholic encephalopathy (G31.2) (from G04)
- multiple sclerosis (G35-) (from G04)
- myalgic encephalomyelitis (G93.32) (from G04)
- subacute necrotizing myelitis (G37.4) (from G04)
- toxic encephalitis (G92.8) (from G04)
- toxic encephalopathy (G92.8) (from G04)
Use additional code
Add a code to identify the following, if applicable.
Also known as
- Encephalitis, post immunization
- Encephalomyelitis, post immunization
- Complication, vaccination, encephalitis or encephalomyelitis
- Complication, vaccination, myelitis
- Encephalitis, acute, disseminated, postimmunization
- Encephalitis, due to smallpox inoculation
- Encephalitis, following vaccination or other immunization procedure
- Encephalitis, postimmunization
- Encephalitis, postvaccinal
- Encephalomyelitis, acute disseminated, postimmunization
- Encephalomyelitis, postvaccinal
- Encephalopathy, in vaccination
- Leukoencephalitis, acutehemorrhagic, postimmunization or postvaccinal
- Leukoencephalopathy, postimmunization and postvaccinal
- Meningoencephalomyelitis, acute NEC, disseminated, postimmunization or postvaccination
- Meningoencephalomyelitis, postimmunization or postvaccination
- Myelitis, postimmunization
Parent code
- G04.0Acute disseminated encephalitis and encephalomyelitis (ADEM)Header