ICD-9 Code 322.9
Meningitis, unspecified
Not Valid for Submission
322.9 is a legacy non-billable code used to specify a medical diagnosis of meningitis, unspecified. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
ICD-9: | 322.9 |
Short Description: | Meningitis NOS |
Long Description: | Meningitis, unspecified |
Convert 322.9 to ICD-10
The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:
- G03.9 - Meningitis, unspecified
Code Classification
-
Diseases of the nervous system (320–359)
-
Inflammatory diseases of the central nervous system (320-327)
- 322 Meningitis of unspecified cause
-
Inflammatory diseases of the central nervous system (320-327)
Information for Medical Professionals
Index to Diseases and Injuries
References found for the code 322.9 in the Index of Diseases and Injuries:
- Arachnoiditis acute adhesive basic brain cerebrospinal chiasmal chronic spinal SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9- meningococcal chronic 036.0
- syphilitic 094.2
- tuberculous SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Tuberculosis meninges 013.0
- Effusion
- cerebrospinal SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9- vessel 348.5
- meninges SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9
- cerebrospinal SEE ALSO See Also
- Ependymitis acute cerebral chronic granular SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9 - Infection infected infective opportunistic 136.9
- brain SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Encephalitis 323.9- membranes SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9
- membranes SEE ALSO See Also
- cerebrospinal SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9- late effect see category 326
- brain SEE ALSO See Also
- Inflammation inflamed inflammatory with exudation
- cerebrospinal SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9- late effect see category 326
- meningococcal 036.0
- tuberculous SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Tuberculosis 013.6
- cerebrospinal SEE ALSO See Also
- Leptomeningitis chronic circumscribed hemorrhagic nonsuppurative SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9- aseptic 047.9
- adenovirus 049.1
- Coxsackie virus 047.0
- ECHO virus 047.1
- enterovirus 047.9
- lymphocytic choriomeningitis 049.0
- epidemic 036.0
- late effect see category 326
- meningococcal 036.0
- pneumococcal 320.1
- syphilitic 094.2
- tuberculous SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Tuberculosis meninges 013.0
- aseptic 047.9
- Leptomeningopathy SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9 - Meningitis basal basic basilar brain cerebral cervical congestive diffuse hemorrhagic infantile membranous metastatic nonspecific pontine progressive simple spinal subacute sympathetica toxic 322.9
- abacterial NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis aseptic 047.9
- actinomycotic 039.8 320.7
- adenoviral 049.1
- aerobacter aerogenes 320.82
- anaerobes cocci gram negative gram positive mixed NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 320.81
- arbovirus NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 066.9 321.2
- aseptic acute NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 047.9- adenovirus 049.1
- Coxsackie virus 047.0
- due to
- adenovirus 049.1
- Coxsackie virus 047.0
- ECHO virus 047.1
- enterovirus 047.9
- mumps 072.1
- poliovirus SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Poliomyelitis 045.2 321.2
- ECHO virus 047.1
- herpes simplex virus 054.72
- zoster 053.0
- leptospiral 100.81
- lymphocytic choriomeningitis 049.0
- noninfective 322.0
- Bacillus pyocyaneus 320.89
- bacterial NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 320.9- anaerobic 320.81
- gram negative 320.82
- anaerobic 320.81
- Bacteroides fragilis oralis melaninogenicus 320.81
- cancerous M8000 6 198.4
- candidal 112.83
- carcinomatous M8010 6 198.4
- caseous SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Tuberculosis meninges 013.0
- cerebrospinal acute chronic diplococcal endemic epidemic fulminant infectious malignant meningococcal sporadic 036.0
- carrier suspected of V02.59
- clear cerebrospinal fluid NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 322.0
- Clostridium haemolyticum novyi NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 320.81
- coccidioidomycosis 114.2
- Coxsackie virus 047.0
- cryptococcal 117.5 321.0
- diplococcal 036.0
- gram negative 036.0
- gram positive 320.1
- Diplococcus pneumoniae 320.1
- due to
- actinomycosis 039.8 320.7
- adenovirus 049.1
- coccidiomycosis 114.2
- enterovirus 047.9
- histoplasmosis SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Histoplasmosis 115.91
- Listerosis 027.0 320.7
- Lyme disease 088.81 320.7
- moniliasis 112.83
- mumps 072.1
- neurosyphilis 094.2
- nonbacterial organisms NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 321.8
- oidiomycosis 112.83
- poliovirus SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Poliomyelitis 045.2 321.2
- preventive immunization inoculation or vaccination 997.09 321.8
- sarcoidosis 135 321.4
- sporotrichosis 117.1 321.1
- syphilis 094.2
- acute 091.81
- congenital 090.42
- secondary 091.81
- trypanosomiasis SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Trypanosomiasis 086.9 321.3
- whooping cough 033.9 320.7
- E. coli 320.82
- ECHO virus 047.1
- endothelial leukocytic benign recurrent 047.9
- Enterobacter aerogenes 320.82
- enteroviral 047.9
- enterovirus 047.9
- eosinophilic 322.1
- Escherichia coli E. coli 320.82
- Eubacterium 320.81
- fibrinopurulent NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 320.9
- Friedl nder bacillus 320.82
- Fusobacterium 320.81
- gonococcal 098.82
- gram negative bacteria NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 320.82- anaerobic 320.81
- gram negative cocci NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 036.0
- gram positive cocci NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 320.9
- H. influenzae 320.0
- herpes simplex virus 054.72
- zoster 053.0
- influenzal 320.0
- Klebsiella pneumoniae 320.82
- late effect see Late effect meningitis
- leptospiral aseptic 100.81
- Listerella monocytogenes 027.0 320.7
- Listeria monocytogenes 027.0 320.7
- lymphocytic acute benign serous 049.0
- choriomeningitis virus 049.0
- meningococcal chronic 036.0
- Mima polymorpha 320.82
- Mollaret s 047.9
- monilial 112.83
- mumps virus 072.1
- Neisseria 036.0
- neurosyphilis 094.2
- nonbacterial NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis aseptic 047.9
- oidiomycosis 112.83
- ossificans 349.2
- Peptococcus 320.81
- PeptoStreptococcus 320.81
- pneumococcal 320.1
- poliovirus SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Poliomyelitis 045.2 321.2
- Proprionibacterium 320.81
- Proteus morganii 320.82
- Pseudomonas aeruginosa pyocyaneus 320.82
- Salmonella 003.21
- serosa circumscripta NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 322.0
- serous NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis aseptic 047.9- lymphocytic 049.0
- syndrome 348.2
- Serratia marcescens 320.82
- specified organism NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 320.89
- sporadic cerebrospinal 036.0
- sporotrichosis 117.1 321.1
- staphylococcal 320.3
- sterile 997.09
- streptococcal acute 320.2
- suppurative 320.9
- syphilitic 094.2
- acute 091.81
- congenital 090.42
- secondary 091.81
- torula 117.5 321.0
- traumatic complication of injury 958.8
- Treponema denticola macrodenticum 320.81
- trypanosomiasis 086.1 321.3
- tuberculous SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Tuberculosis meninges 013.0
- typhoid 002.0 320.7
- Veillonella 320.81
- Vibrio vulnificus 320.82
- viral virus NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis aseptic 047.9
- Wallgren s SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis aseptic 047.9
- abacterial NEC NEC "Not elsewhere classifiable"
- Pachymeningitis adhesive basal brain cerebral cervical chronic circumscribed external fibrous hemorrhagic hypertrophic internal purulent spinal suppurative SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9- gonococcal 098.82
- Ventriculitis cerebral SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Meningitis 322.9
Information for Patients
Meningitis
Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common is viral meningitis. You get it when a virus enters the body through the nose or mouth and travels to the brain. Bacterial meningitis is rare, but can be deadly. It usually starts with bacteria that cause a cold-like infection. It can cause stroke, hearing loss, and brain damage. It can also harm other organs. Pneumococcal infections and meningococcal infections are the most common causes of bacterial meningitis.
Anyone can get meningitis, but it is more common in people with weak immune systems. Meningitis can get serious very quickly. You should get medical care right away if you have:
- A sudden high fever
- A severe headache
- A stiff neck
- Nausea or vomiting
Early treatment can help prevent serious problems, including death. Tests to diagnose meningitis include blood tests, imaging tests, and a spinal tap to test cerebrospinal fluid. Antibiotics can treat bacterial meningitis. Antiviral medicines may help some types of viral meningitis. Other medicines can help treat symptoms.
There are vaccines to prevent some of the bacterial infections that cause meningitis.
NIH: National Institute of Neurological Disorders and Stroke
[Read More]
ICD-9 Footnotes
General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
- No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
- Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.
Index of Diseases and Injuries Definitions
- And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
- Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the 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.
- Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
- NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
- See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
- See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
- 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.