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  5. Meningitis in other infectious and parasitic diseases classified elsewhere (G02)

Meningitis in other infectious and parasitic diseases classified elsewhere (G02)

ICD-10 code G02 is used to classify meningitis cases that result from a variety of infectious and parasitic diseases not categorized under standard meningitis codes. This includes infections caused by fungi, parasites, and certain other organisms affecting the central nervous system.

The code covers meningitis associated with infections such as Aspergillus meningitis, Cryptococcal meningitis, Candidal meningitis, and parasitic forms like Toxocara meningitis, Strongyloides stercoralis meningitis, and Trypanosomiasis with meningitis. These synonymous terms highlight the range of specific infectious agents, including fungal infections (e.g., Histoplasma, Coccidioides) and parasitic infections (e.g., Taenia solium causing cysticercosis). Medical professionals and coders refer to this code when meningitis is secondary to such infections, enabling precise documentation for conditions like fungal and parasitic meningitis that differ from viral or bacterial types. Knowing the ICD-10 code for parasitic or fungal meningitis aids in accurate diagnosis, treatment plans, and health records management.

Instructional Notations

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.

  • underlying disease, such as:
  • African trypanosomiasis B56
  • poliovirus infection A80

Type 1 Excludes

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.

  • candidal meningitis B37.5
  • coccidioidomycosis meningitis B38.4
  • cryptococcal meningitis B45.1
  • herpesviral [herpes simplex] meningitis B00.3
  • infectious mononucleosis complicated by meningitis B27
  • measles complicated by meningitis B05.1
  • meningoencephalitis and meningomyelitis in other infectious and parasitic diseases classified elsewhere G05
  • mumps meningitis B26.1
  • rubella meningitis B06.02
  • varicella [chickenpox] meningitis B01.0
  • zoster meningitis B02.1

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Coccidioidal Meningitis

Meningitis caused by a fungus of the genus COCCIDIOIDES, endemic to the SOUTHWESTERN UNITED STATES, south-central Washington State, and parts of Mexico and Central and South America.