320.81 ANAEROBIC MENINGITIS


Code Information

Diagnosis Code: 320.81

Short Description: Anaerobic meningitis

Long Description: Anaerobic meningitis

Code Classification:

  • Diseases of the nervous system (320–359)
    • Inflammatory diseases of the central nervous system (320-327)
      • 320 Bacterial meningitis
        • 320.81 Anaerobic meningitis

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 320.81 has the following ICD-9-CM references to 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
    • anaerobes (cocci) (gram-negative) (gram-positive) (mixed) (NEC) 320.81
    • bacterial NEC 320.9
      • anaerobic 320.81
      • gram-negative 320.82
        • anaerobic 320.81
    • Bacteroides (fragilis) (oralis) (melaninogenicus) 320.81
    • Clostridium (haemolyticum) (novyi) NEC 320.81
    • Eubacterium 320.81
    • Fusobacterium 320.81
    • gram-negative bacteria NEC 320.82
      • anaerobic 320.81
    • Peptococcus 320.81
    • PeptoStreptococcus 320.81
    • Proprionibacterium 320.81
    • Treponema (denticola) (macrodenticum) 320.81
    • Veillonella 320.81

Crosswalk Information

The code 320.81 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
320.81 Right Arrow G00.8 Other bacterial meningitis
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
320.0 Hemophilus meningitis
320.1 Pneumococcal meningitis
320.2 Streptococcal meningitis
320.3 Staphylococcal meningitis
320.7 Meningitis in other bacterial diseases classified elsewhere
320.82 Meningitis due to gram-negative bacteria, not elsewhere classified
320.89 Meningitis due to other specified bacteria
320.9 Meningitis due to unspecified bacterium


This page was last updated on: 10/1/2014