G04.02

Billable

Postimmun ac dissem encphlts, myelitis and encephalomyelitis

Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis

Status

Billable / Specific

Chapter

6: Diseases of the Nervous System

Block

G00-G09

Parent Code

G04.0

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

Encephalitis, post immunization
Encephalomyelitis, post immunization

Includes

Conditions included under this code

acute ascending myelitis
meningoencephalitis
meningomyelitis

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Use Additional Code

Additional codes that should follow this code

•code to identify the vaccineA-, B-, Z-)T50, T50, T50

Related Codes(2)

G04.00

Acute disseminated encephalitis and encephalomyelitis, unsp

Billable G04.01

Postinfect acute dissem encephalitis and encephalomyelitis

Billable

Also Known As / Clinical Terms(281)

SNOMED CT

UMLS

Clinical Terms

Encephalitis caused by component of vaccine product containing Salmonella enterica subspecies enterica serovar Typhi antigen
Encephalitis caused by diphtheria vaccine
Encephalitis caused by component of vaccine product containing Clostridium tetani antigen
Encephalitis caused by plague vaccine
Encephalitis, Post Vaccinal
Encephalitis caused by pertussis vaccine
Adverse reaction to measles vaccine
Adverse reaction to rabies vaccine
Adverse reaction to component of vaccine product containing Influenza virus antigen
Adverse reaction to component of vaccine product containing Yellow fever virus antigen
Post cholera vaccination encephalitis
Encephalitis caused by component of vaccine product containing Hepatitis A virus antigen
Encephalitis, post immunization
Encephalomyelitis caused by component of vaccine product (disorder)
Encephalitis caused by rubella vaccine
Encephalitis post immunization
Encephalitis, Post-Vaccinal
Post Vaccinal Encephalomyelitis
Adverse reaction to component of vaccine product containing Vibrio cholerae antigen
Measles vaccine adverse reaction
Encephalitis caused by rabies vaccine
Post yellow fever vaccination encephalitis
Adverse reaction to component of vaccine product containing Hepatitis B virus antigen
Encephalitis caused by component of vaccine product containing Vibrio cholerae antigen
Adverse reaction to hepatitis A vaccine
Post diphtheria vaccination encephalitis
Encephalitis caused by component of typhus vaccine product
Post influenza vaccination encephalitis
Post-Vaccinal Encephalomyelitis
Adverse reaction to component of vaccine product containing Rubella virus antigen
Post-bacillus Calmette-Guerin vaccination encephalitis
Post-Vaccinal Encephalitides
ENCEPH VACCINATION
Adverse reaction to component of vaccine product containing Measles morbillivirus antigen
Rabies vaccine adverse reaction
Adverse reaction to tuberculosis vaccine
Adverse reaction to component of vaccine product containing Hepatitis A virus antigen
Adverse reaction to component of vaccine product containing Bacillus Calmette-Guerin antigen
Adverse reaction to plague vaccine
Rubella vaccine adverse reaction
Adverse reaction to pertussis vaccine
Adverse reaction to yellow fever vaccine
Encephalitis caused by component of mixed vaccine product
Postvaccinal encephalomyelitis
Yellow fever vaccine adverse reaction
Post rubella vaccination encephalitis
Encephalitis caused by Yersinia pestis vaccine
Encephalitis caused by component of vaccine product containing Measles morbillivirus antigen
POSTVACCINAL ENCEPH
Hepatitis B vaccine adverse reaction
Encephalitis caused by mumps vaccine
Post smallpox vaccination encephalitis
Encephalitis caused by component of vaccine product containing Rabies lyssavirus antigen
Adverse reaction to component of vaccine product containing Vaccinia virus antigen
Encephalitis post immunisation
Typhoid vaccine adverse reaction
Post measles vaccination encephalitis
Adverse reaction to hepatitis B vaccine
Adverse reaction to component of typhus vaccine
POST VACCINAL ENCEPH
Adverse reaction to typhoid vaccine
Encephalitis caused by hepatitis A vaccine
Encephalitis caused by polio vaccine
Adverse reaction to rubella vaccine
Adverse reaction to typhus vaccine
Encephalitis caused by component of vaccine product containing Hepatitis B virus antigen
Tuberculosis vaccine adverse reaction
Post tetanus vaccination encephalitis
Encephalitis caused by component of vaccine product containing Influenza virus antigen
Adverse reaction to component of vaccine product containing Human poliovirus antigen
Adverse reaction to component of vaccine product containing Yersinia pestis antigen
Encephalitis caused by measles vaccine
Post Vaccinal Encephalitis
Smallpox vaccine adverse reaction
Encephalitis caused by influenza vaccine
ENCEPH POST VACCINAL
Encephalitis caused by bacillus Calmette-Guerin vaccine
Encephalitis caused by smallpox vaccine
Adverse reaction to component of vaccine product containing Salmonella enterica subspecies enterica serovar Typhi antigen
Encephalitis caused by component of vaccine product containing live attenuated Mycobacterium bovis antigen
Encephalitis caused by typhus vaccine
Encephalitis caused by typhoid vaccine
Adverse reaction to component of vaccine product containing Mumps orthorubulavirus antigen
ENCEPH POSTVACCINAL
Encephalitis caused by yellow fever vaccine
Influenza virus vaccine adverse reaction
Poliomyelitis vaccine adverse reaction
Pertussis vaccine adverse reaction
Adverse reaction to component of vaccine product containing Bordetella pertussis antigen
Adverse reaction to mumps vaccine
Encephalitis caused by component of vaccine product containing Corynebacterium diphtheriae antigen
Encephalitis caused by component of vaccine product containing Human poliovirus antigen
Encephalitis caused by component of vaccine product containing Bordetella pertussis antigen
Post rabies vaccination encephalitis
Post typhus vaccination encephalitis
Vaccination Encephalitis
Encephalomyelitis caused by vaccine
Adverse reaction to component of vaccine product containing Rabies lyssavirus antigen
Encephalitis caused by hepatitis B vaccine
Postvaccinal Encephalitis
Encephalomyelitis, Post-Vaccinal
Post typhoid vaccination encephalitis
VACCINATION ENCEPH
Encephalitis following immunization procedures
Mumps vaccine adverse reaction
Post BCG vaccination encephalitis
Encephalitis caused by cholera vaccine
Post-Vaccinal Encephalitis
Encephalitis caused by component of vaccine product containing Yellow fever virus antigen
Encephalitis, Postvaccinal
Plague vaccine adverse reaction
Encephalitis caused by component of vaccine product containing Mumps orthorubulavirus antigen
Adverse reaction to influenza virus vaccine
Post mixed vaccination encephalitis
Post mumps vaccination encephalitis
Encephalitis caused by component of vaccine product containing Vaccinia virus antigen
Post hepatitis A vaccination encephalitis
Post polio vaccination encephalitis
Encephalomyelitis caused by component of vaccine product
Post hepatitis B vaccination encephalitis
Encephalitis following immunisation procedures
Post-Vaccinal Encephalomyelitides
Encephalitis caused by component of vaccine product containing Rubella virus antigen
Adverse reaction to smallpox vaccine
Post plague vaccination encephalitis
Encephalitis, Vaccination
Encephalitis caused by component of vaccine product containing Yersinia pestis antigen
Post-immunization encephalomyelitis
Adverse reaction to cholera vaccine
Encephalitis caused by mixed vaccine
Adverse reaction to poliomyelitis vaccine
Post-immunisation encephalomyelitis
Hepatitis A vaccine adverse reaction
Post pertussis vaccination encephalitis
Cholera vaccine adverse reaction
Encephalitis caused by tetanus vaccine
Encephalomyelitis, post immunization

Frequently Asked Questions

What is the ICD-10 code for postimmun ac dissem encphlts, myelitis and encephalomyelitis?

The ICD-10-CM code for postimmun ac dissem encphlts, myelitis and encephalomyelitis is G04.02. The full clinical description is "Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis". G04.02 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code G04.02 mean?

ICD-10-CM code G04.02 represents “Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis”. It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.

Is G04.02 a billable code?

Yes, G04.02 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is G04.02 in?

G04.02 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).

What codes cannot be used with G04.02?

G04.02 has Excludes1 notes indicating codes that cannot be used together with it, including: encephalopathy NOS (G93.40); acute necrotizing hemorrhagic encephalopathy (G04.3-); other noninfectious acute disseminated encephalomyelitis (noninfectious ADEM) (G04.81).

Are additional codes required with G04.02?

Yes, when using G04.02, also report: the vaccine (T50.A-, T50.B-, T50.Z-).

What SNOMED CT codes does G04.02 map to?

G04.02 maps to 36 SNOMED CT concepts: 219082005, 219094001, 219076007, 293115003, 293126009, and 31 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for G04.02?

G04.02 is linked to 3 UMLS Concept Unique Identifiers: C0751101, C0729577, C3263957. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does G04.02 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like postimmun ac dissem encphlts, myelitis and encephalomyelitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of G04.02?

There is no direct ICD-11 mapping available for G04.02 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.