ICD-9 Diagnosis Code 321.0

Cryptococcal meningitis

Diagnosis Code 321.0

ICD-9: 321.0
Short Description: Cryptococcal meningitis
Long Description: Cryptococcal meningitis
This is the 2014 version of the ICD-9-CM diagnosis code 321.0

Code Classification
  • Diseases of the nervous system
    • Inflammatory diseases of the central nervous system (320-327)
      • 321 Meningitis due to other organisms

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Manifestations not allowed as principal diagnosis Additional informationCallout TooltipManifestations not allowed as principal diagnosis
Manifestations not allowed as principal diagnosis: Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 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.

Index of Diseases and Injuries
References found for the code 321.0 in the Index of Diseases and Injuries:

    • Meningitis (basal) (basic) (basilar) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetica) (toxic) 322.9
      • cryptococcal 117.5 [321.0]
      • torula 117.5 [321.0]

Information for Patients


Also called: Spinal 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, which you get 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 block blood vessels in the brain and lead to stroke and brain damage. It can also harm other organs. Pneumococcal infections and meningococcal infections can cause bacterial meningitis.

Anyone can get meningitis, but it is more common in people whose bodies have trouble fighting infections. Meningitis can progress rapidly. You should seek medical care quickly if you have

  • A sudden fever
  • A severe headache
  • A stiff neck

Early treatment can help prevent serious problems, including death. Vaccines can prevent some of the bacterial infections that cause meningitis. Parents of adolescents and students living in college dorms should talk to a doctor about the vaccination.

NIH: National Institute of Neurological Disorders and Stroke

  • Cerebral spinal fluid (CSF) collection
  • Cerebrospinal fluid culture
  • Meningitis
  • Meningitis - cryptococcal
  • Meningitis - gram-negative
  • Meningitis - H. influenzae
  • Meningitis - meningococcal
  • Meningitis - pneumococcal
  • Meningitis - staphylococcal
  • Meningitis - tuberculous
  • Meningococcal Vaccines: What You Need to Know (Centers for Disease Control and Prevention)
  • Pneumococcal Conjugate Vaccine: What You Need to Know (Centers for Disease Control and Prevention)
  • Pneumococcal Polysaccharide Vaccine: What You Need to Know (Immunization Action Coalition)
  • Syphilitic aseptic meningitis

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