Meningitis in oth infec/parastc diseases classd elswhr (G02)

Instructional Notations

Code First 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 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