Non-Viral And Unspecified Infections Of The Central Nervous System – Definitions & ICD 11 Codes

Definition of Non-viral and unspecified infections of the central nervous system: Any condition of the nervous system, caused by an infection with a bacterial, fungal, parasitic or unspecified source.

Coded Elsewhere:

Infectious encephalitis not elsewhere classified

Definition of Infectious encephalitis not elsewhere classified: A disease of the brain, caused by an infection.

ICD 11 Code For Infectious encephalitis not elsewhere classified

 1D00  Infectious encephalitis not elsewhere classified

Coding Note:

  • Code also the causing condition

1D00.0 Bacterial encephalitis

Coded Elsewhere:

1D00.1 Fungal encephalitis

1D00.2 Parasitic or protozoal encephalitis

Coded Elsewhere:

1D00.Y Other specified infectious encephalitis not elsewhere classified

Coding Note:

  • Code also the causing condition

1D00.Z Infectious encephalitis not elsewhere classified unspecified

Coding Note:

  • Code also the causing condition

Infectious meningitis not elsewhere classified

Definition of Infectious meningitis not elsewhere classified: A disease of the meninges, caused by an infection.

ICD 11 Code For Infectious meningitis not elsewhere classified

1D01  Infectious meningitis not elsewhere classified

Coding Note:

Code also the causing condition

1D01.0 Bacterial meningitis

Definition of Bacterial Meningitis: Any disease of the meninges, caused by an infection with a bacterial source.

Coding Note:

  • Code also the causing condition

Inclusions:

  • arachnoiditis bacterial
  • leptomeningitis bacterial
  • pachymeningitis bacterial

Exclusions:

  • bacterial: meningoencephalitis
  • bacterial meningomyelitis

Coded Elsewhere:

  • Pachymeningitis

1D01.00 Meningitis due to Haemophilus influenzae

1D01.0Y Other specified bacterial meningitis

Coding Note:

  • Code also the causing condition

1D01.0Z Bacterial meningitis unspecified

Coding Note:

  • Code also the causing condition

1D01.1 Fungal meningitis

Definition of Fungal meningitis: A disease of the meninges, caused by an infection with a fungal agent.

Coded Elsewhere:

1D01.10 Meningitis due to Cryptococcus neoformans

Definition of Meningitis due to Cryptococcus neoformans: Inflammation of the pia and arachnoid and spinal fluid associated with the fungus cryptococcus neoformans. The respiratory tract is the usual portal of entry and meningitis may occur after dissemination to the meninges from the lungs. C neoformans meningitis tends to occur in patients with defective cellular immunity. The meningits usually evolves sub acutely, but may be acute. Clinical features include headache, fever, nausea and vomiting, meningismus, visual disturbances, abnormal mental status, seizures, and raised intracranial pressure. Headache, fever, and stiff neck may be absent. The diagnosis is made by microscopic examination of the spinal fluid, culture of CSF and blood, and the latex agglutination test to detect the capsular polysaccharide antigen in CSF and blood. The organism may be seen on Gram stain or India ink stain of the CSF. The spinal fluid usually shows varuable lymphocytic pleocytosis, a low glucose content, and a high protein level.

1D01.1Y Other specified fungal meningitis

1D01.1Z Fungal meningitis unspecified

1D01.2 Parasitic or protozoal meningitis

Coded Elsewhere:

1D01.3 Benign recurrent meningitis

1D01.Y Other specified infectious meningitis not elsewhere classified

Coding Note:

  • Code also the causing condition

1D01.Z Infectious meningitis not elsewhere classified unspecified

Coding Note:

  • Code also the causing condition

Infectious myelitis not elsewhere classified

ICD 11 Code For Infectious myelitis not elsewhere classified

1D02  Infectious myelitis not elsewhere classified

A disease of the spinal cord, caused by an infection.

Coding Note:

Code also the causing condition

1D02.0 Bacterial myelitis

Coding Note:

  • Code also the causing condition

1D02.1 Viral myelitis

Coding Note:

  • Code also the causing condition

Exclusions:

Myelitis due to human immunodeficiency disease

1D02.2 Fungal myelitis

Coding Note:

  • Code also the causing condition

1D02.3 Parasitic myelitis

Coding Note:

  • Code also the causing condition

1D02.Y Other specified infectious myelitis not elsewhere classified

Coding Note:

  • Code also the causing condition

1D02.Z Infectious myelitis not elsewhere classified unspecified

Coding Note:

  • Code also the causing condition

Infectious abscess of the central nervous system

ICD 11 Code For Infectious abscess of the central nervous system

1D03  Infectious abscess of the central nervous system

Definition of Infectious abscess of the central nervous system: A focal suppurative process of the brain parenchyma, the intracranial or spinal epidural or subdural space, and less commonly the spinal cord parenchyma. The suppurative process is most commonly associated with bacterial infection, and occasionally with fungal, protozoal, or parasitic infection. Brain abscesses develop most commonly by spread from a contiguous infected site (ear, paranasal sinuses, mastoid air cells, teeth), craniofacial osteomyelitis, and following open head trauma or previous neurosurgical procedure. Haematogenous spread from purulent pulmonary infections, bacterial endocarditis, or other sites of infection, can also cause brain abscess . Patients with intracranial abscess present with variable combinations of headache, altered mental status, focal deficits, and seizures. Fever may be present. Patients with intraspinal abscess present with variable degrees of paraparesis or quadriparesis, sensory impairment below the level of the lesion, altered sphincter function, and back pain. The diagnosis is made by CT or MRI imaging, and may be confirmed by histological examination and culture of the abscess material following neurosurgical drainage. Lumbar puncture is usually contraindicated.

Coding Note:

  • Code also the causing condition

1D03.0 Intraspinal intramedullary abscess

Coding Note:

  • Code also the causing condition

1D03.1 Intraspinal subdural abscess

Coding Note:

  • Code also the causing condition

1D03.2 Intraspinal extradural abscess

Coding Note:

  • Code also the causing condition

1D03.3 Intracranial abscess

Definition of Intracranial abscess: A condition of the cranial cavity, caused by an infection with a bacterial, viral, or fungal source. This condition is characterised by a focal accumulation of purulent material within the cranial cavity. This condition may present with fever, headache, and focal neurological deficits.

Coding Note:

  • Code also the causing condition

Coding Note: Code aslo the causing condition

1D03.30 Deep cerebral hemispheric abscess

1D03.31 Abscess of the corpus callosum

Coding Note:

  • Code also the causing condition

1D03.32 Pituitary abscess

Coding Note:

  • Code also the causing condition

1D03.33 Multiple or widespread intracranial abscess

Definition of Multiple or widespread intracranial abscess: Multiple focal suppurative infections within the cranial cavity, including the epidural and subdural spaces, or in the brain, brainstem or cerebellum. The abscesses are typically surrounded by a vascularised capsule. Cerebritis describes nonencapsulated brain abscesses. The infective agent may be bacterial, fungal, or parasitic. The signs and symptoms are variable but typically present as an expanding mass lesion, over a variable period of time, with headache, fever, and a focal neurologic deficit. Seizures may occur. Diagnosis is made by neuroimaging. Microbiologic diagnosis is made by gram stain and culture of abscess material.

Coding Note:

  • Code also the causing condition

1D03.3Y Other specified intracranial abscess

Coding Note:

  • Code also the causing condition

1D03.3Z Intracranial abscess unspecified

Coding Note:

  • Code also the causing condition

1D03.4 Intraspinal epidural abscess

Definition of Intraspinal epidural abscess: A condition of the epidural space, caused by an infection with a bacterial, viral, fungal, or parasitic source. This condition is characterised by a focal accumulation of purulent material within the epidural space. This condition presents with symptoms depending on the location of the abscess. Transmission is through haematogenous spread of the infectious agent commonly from a cutaneous or mucosal source.

Coding Note:

  • Code also the causing condition

1D03.5 Spinal cord abscess

Definition of Spinal cord abscess: A condition of the spinal cord, caused by an infection with a bacterial, viral, or fungal source. This condition is characterised by a focal accumulation of purulent material within the spinal cord. This condition may present with fever, back pain, and neurological deficits. Transmission is through haematogenous spread of the infectious agent.

Coding Note:

  • Code also the causing condition

1D03.Y Other specified site of infectious abscess of the central nervous system

Coding Note:

  • Code also the causing condition

1D03.Z Infectious abscess of the central nervous system site unspecified

Coding Note:

  • Code also the causing condition

Infectious granulomas of the central nervous system

ICD 11 Code For Infectious granulomas of the central nervous system

1D04  Infectious granulomas of the central nervous system

Coded Elsewhere:

1D04.0 Parasitic intracerebral granuloma

1D04.1 Intracranial granuloma

Definition of Intracranial granuloma: A condition of the cranial cavity, caused by an infection with a bacterial, viral, fungal, or parasitic source. This condition is characterised by an organised collection of macrophages within the cranial cavity. This condition may present with neurological deficits.

1D04.10 Fungal intracranial granuloma

1D04.1Y Other specified intracranial granuloma

1D04.1Z Intracranial granuloma unspecified

1D04.2 Intraspinal intramedullary granuloma

1D04.3 Intraspinal subdural granuloma

1D04.4 Intraspinal extradural granuloma

1D04.5 Intraspinal epidural granuloma

Definition of Intraspinal epidural granuloma: A condition of the epidural space, caused by an infection with a bacterial, viral, fungal, or parasitic source. This condition is characterised by an organised collection of macrophages within the epidural space. This condition may present with neurological deficits.

1D04.Y Other specified infectious granulomas of the central nervous system

1D04.Z Infectious granulomas of the central nervous system unspecified

Infectious cysts of the central nervous system

ICD 11 Code For Infectious cysts of the central nervous system

1D05  Infectious cysts of the central nervous system

1D05.0 Epidural infectious cyst

Definition of Epidural infectious cyst: A condition of the epidural space, caused by an infection with a bacterial, viral, fungal, or parasitic source. This condition is characterised by a membranous sac that may be filled with gas, fluid, or semi solid material within the epidural space. This condition may present with neurological deficits.

1D05.1 Subdural infectious cyst

Definition of Subdural infectious cyst: A condition of the subdural space, caused by an infection with a bacterial, viral, fungal, or parasitic source. This condition is characterised by a membranous sac that may be filled with gas, fluid, or semi solid material between the dura mater and the arachnoid mater. This condition may present with neurological deficits.

1D05.Y Other specified infectious cysts of the central nervous system

1D05.Z Infectious cysts of the central nervous system unspecified

Other specified non-viral and unspecified infections of the central nervous system

ICD 11 Code For Other specified non-viral and unspecified infections of the central nervous system

1D0Y  Other specified non-viral and unspecified infections of the central nervous system

Non-viral and unspecified infections of the central nervous system, unspecified

ICD 11 Code For Non-viral and unspecified infections of the central nervous system, unspecified

1D0Z  Non-viral and unspecified infections of the central nervous system unspecified

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