Encphlts, myelitis & encephalomyelitis in dis classd elswhr (G05)

Clinical Information for Encphlts, myelitis & encephalomyelitis in dis classd elswhr (G05)

Cerebral Phaeohyphomycosis - CNS infections caused by neurotropic dematiaceous fungi that contain melanin in their cell walls. The infections often result in BRAIN ABSCESS; ENCEPHALITIS; and MENINGITIS in patients who are often immunocompetent. The common causative fungi include members Cladophialophora bantiana, Exophiala dermatitidis, Rhinocladiella mackenziei, and Ochroconis gallopavum. R. mackenziei infection is seen almost exclusively in patients from the MIDDLE EAST.

Phaeohyphomycosis - OPPORTUNISTIC INFECTIONS caused by the dematiaceous (darkly pigmented) MITOSPORIC FUNGI of ALTERNARIA, Bipolaris, CLADOSPORIUM, Curvularia, and EXOPHIALA. These fungi have pigmented HYPHAE due to MELANIN in the cell wall. The initial subcutaneous cyst from the infection can become systemic and spread rapidly to renal, pulmonary and cerebral systems (see CEREBRAL PHAEOHYPHOMYCOSIS) in an IMMUNOCOMPROMISED HOST.

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:
  • congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis P37.1
  • cytomegaloviral encephalitis, myelitis and encephalomyelitis B25.8
  • encephalitis, myelitis and encephalomyelitis in systemic lupus erythematosus M32.19
  • eosinophilic meningoencephalitis B83.2
  • human immunodeficiency virus [HIV] disease B20
  • poliovirus A80
  • suppurative otitis media H66.01 H66.4
  • trichinellosis B75

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.

  • adenoviral encephalitis, myelitis and encephalomyelitis A85.1
  • encephalitis, myelitis and encephalomyelitis in measles B05.0
  • enteroviral encephalitis, myelitis and encephalomyelitis A85.0
  • herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis B00.4
  • listerial encephalitis, myelitis and encephalomyelitis A32.12
  • meningococcal encephalitis, myelitis and encephalomyelitis A39.81
  • mumps encephalitis, myelitis and encephalomyelitis B26.2
  • postchickenpox encephalitis, myelitis and encephalomyelitis B01.1
  • rubella encephalitis, myelitis and encephalomyelitis B06.01
  • toxoplasmosis encephalitis, myelitis and encephalomyelitis B58.2
  • zoster encephalitis, myelitis and encephalomyelitis B02.0