ICD-10-CM Codes
G00-G99
G00-G09
G01-
2023 ICD-10-CM Diagnosis Code G01

2023 ICD-10-CM Diagnosis Code G01

Meningitis in bacterial diseases classified elsewhere

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

Manifestation Code

G01 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 G01 became effective on October 1, 2022.
This is the American ICD-10-CM version of G01 - other international versions of ICD-10 G01 may differ.

ICD-10-CM Coding Rules

G01 describes the manifestation of an underlying disease, not the disease itself.

Code First

Code First Help

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.

underlying disease

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 G01. 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.

meningitis (in):
gonococcal (
ICD-10-CM Diagnosis Code A54.81
Gonococcal meningitis
A54.81
)
leptospirosis (
ICD-10-CM Diagnosis Code A27.81
Aseptic meningitis in leptospirosis
A27.81
)
listeriosis (
ICD-10-CM Diagnosis Code A32.11
Listerial meningitis
A32.11
)
Lyme disease (
ICD-10-CM Diagnosis Code A69.21
Meningitis due to Lyme disease
A69.21
)
meningococcal (
ICD-10-CM Diagnosis Code A39.0
Meningococcal meningitis
A39.0
)
neurosyphilis (
ICD-10-CM Diagnosis Code A52.13
Late syphilitic meningitis
A52.13
)
tuberculosis (
ICD-10-CM Diagnosis Code A17.0
Tuberculous meningitis
Applicable To
- Tuberculosis of meninges (cerebral)(spinal)
- Tuberculous leptomeningitis
Type 1 Excludes
- tuberculous meningoencephalitis (A17.82)
A17.0
)
meningoencephalitis and meningomyelitis in bacterial diseases classified elsewhere (
ICD-10-CM Diagnosis Code G05
Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
Code First
- 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)
- trichinellosis (B75)
Type 1 Excludes
- 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)
G05
)

The following code(s) above G01 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 G01:

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

ICD-10-CM G01 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
094 Bacterial and tuberculous infections of nervous system with mcc
095 Bacterial and tuberculous infections of nervous system with cc
096 Bacterial and tuberculous infections of nervous system without cc/mcc
791 Prematurity with major problems
793 Full term neonate with major problems

Convert G01 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

ICD-10-CM Codes Adjacent To G01

F98.8 Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence

F98.9 Unspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescence

F99 Mental disorder, not otherwise specified

G00 Bacterial meningitis, not elsewhere classified

G00.0 Hemophilus meningitis

G00.1 Pneumococcal meningitis

G00.2 Streptococcal meningitis

G00.3 Staphylococcal meningitis

G00.8 Other bacterial meningitis

G00.9 Bacterial meningitis, unspecified

G01 Meningitis in bacterial diseases classified elsewhere

G02 Meningitis in other infectious and parasitic diseases classified elsewhere

G03 Meningitis due to other and unspecified causes

G03.0 Nonpyogenic meningitis

G03.1 Chronic meningitis

G03.2 Benign recurrent meningitis [Mollaret]

G03.8 Meningitis due to other specified causes

G03.9 Meningitis, unspecified

G04 Encephalitis, myelitis and encephalomyelitis

G04.0 Acute disseminated encephalitis and encephalomyelitis (ADEM)

G04.00 Acute disseminated encephalitis and encephalomyelitis, unspecified

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 G01

Meningitis in bacterial diseases classified elsewhere

Gonococcal meningitis

Aseptic meningitis in leptospirosis

Listerial meningitis

Meningitis due to Lyme disease

Meningococcal meningitis

Late syphilitic meningitis

Tuberculous meningitis

Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere

Diseases of the nervous system