ICD-10-CM Codes
G00-G99
G00-G09
G04-
2023 ICD-10-CM Diagnosis Code G04.82

2023 ICD-10-CM Diagnosis Code G04.82

Acute flaccid myelitis

2022 - New Code

2023

Billable/Specific Code

G04.82 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM G04.82 became effective on October 1, 2022.
This is the American ICD-10-CM version of G04.82 - other international versions of ICD-10 G04.82 may differ.

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as G04.82. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

transverse myelitis (
ICD-10-CM Diagnosis Code G37.3
Acute transverse myelitis in demyelinating disease of central nervous system
Applicable To
- Acute transverse myelitis NOS
- Acute transverse myelopathy
Type 1 Excludes
- acute flaccid myelitis (G04.82)
- multiple sclerosis (G35)
- neuromyelitis optica [Devic] (G36.0)
G37.3
)

The following code(s) above G04.82 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to G04.82:

G00-G99
2023 ICD-10-CM Range G00-G99
Diseases of the nervous system
Type 2 Excludes
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Diseases of the nervous system
G04
ICD-10-CM Diagnosis Code G04
Encephalitis, myelitis and encephalomyelitis
Includes
- acute ascending myelitis
- meningoencephalitis
- meningomyelitis
Type 1 Excludes
- encephalopathy NOS (G93.40)
Type 2 Excludes
- acute transverse myelitis (G37.3-)
- alcoholic encephalopathy (G31.2)
- multiple sclerosis (G35)
- myalgic encephalomyelitis (G93.32)
- subacute necrotizing myelitis (G37.4)
- toxic encephalitis (G92.8)
- toxic encephalopathy (G92.8)
Encephalitis, myelitis and encephalomyelitis
G04.8
ICD-10-CM Diagnosis Code G04.8
Other encephalitis, myelitis and encephalomyelitis
Code Also
- any associated seizure (G40.-, R56.9)
Other encephalitis, myelitis and encephalomyelitis

ICD-10-CM G04.82 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

023 Craniotomy with major device implant or acute complex cns principal diagnosis with mcc or chemotherapy implant or epilepsy with neurostimulator
024 Craniotomy with major device implant or acute complex cns principal diagnosis without mcc
097 Non-bacterial infection of nervous system except viral meningitis with mcc
098 Non-bacterial infection of nervous system except viral meningitis with cc
099 Non-bacterial infection of nervous system except viral meningitis without cc/mcc

Code History

2022 (effective 10/1/2021): New code
2023 (effective 10/1/2022): No change

Code annotations containing back-references to G04.82:

Type 1 Excludes: A80
, G37.3

ICD-10-CM Diagnosis Code A80
Acute poliomyelitis
Type 1 Excludes
- acute flaccid myelitis (G04.82)
ICD-10-CM Diagnosis Code G37.3
Acute transverse myelitis in demyelinating disease of central nervous system
Applicable To
- Acute transverse myelitis NOS
- Acute transverse myelopathy
Type 1 Excludes
- acute flaccid myelitis (G04.82)
- multiple sclerosis (G35)
- neuromyelitis optica [Devic] (G36.0)

Diagnosis Index entries containing back-references to G04.82:

Myelitis (acute) (ascending) (childhood) (chronic) (descending) (diffuse) (disseminated) (idiopathic) (pressure) (progressive) (spinal cord) (subacute) G04.91
- see also Encephalitis
ICD-10-CM Diagnosis Code G04.91
Myelitis, unspecified
- flaccid G04.82

ICD-10-CM Codes Adjacent To G04.82

G04.02 Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis

G04.1 Tropical spastic paraplegia

G04.2 Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified

G04.3 Acute necrotizing hemorrhagic encephalopathy

G04.30 …… unspecified

G04.31 Postinfectious acute necrotizing hemorrhagic encephalopathy

G04.32 Postimmunization acute necrotizing hemorrhagic encephalopathy

G04.39 Other acute necrotizing hemorrhagic encephalopathy

G04.8 Other encephalitis, myelitis and encephalomyelitis

G04.81 Other encephalitis and encephalomyelitis

G04.82 Acute flaccid myelitis

G04.89 Other myelitis

G04.9 Encephalitis, myelitis and encephalomyelitis, unspecified

G04.90 Encephalitis and encephalomyelitis, unspecified

G04.91 Myelitis, unspecified

G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere

G05.3 Encephalitis and encephalomyelitis in diseases classified elsewhere

G05.4 Myelitis in diseases classified elsewhere

G06 Intracranial and intraspinal abscess and granuloma

G06.0 Intracranial abscess and granuloma

G06.1 Intraspinal abscess and granuloma

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code G04.82

Acute flaccid myelitis

Acute transverse myelitis in demyelinating disease of central nervous system

Diseases of the nervous system

Encephalitis, myelitis and encephalomyelitis

Other encephalitis, myelitis and encephalomyelitis

Acute poliomyelitis

Acute transverse myelitis in demyelinating disease of central nervous system

Myelitis, unspecified