8E40.2

ICD-11 MMS 2026-01

Inflammatory meningitis

Description

A general term to describe a group of disorders in which there is Inflammation of the meninges due to an underlying inflammatory disorder. The syndrome is clinically characterised by headache, neck stiffness, fever and photophobia. Other central and peripheral nervous system manifestations may be present. Non-neurological features, including skin, eye and organ involvement may also be present. Diagnosis may be aided by serological testing, neuroimaging and if appropriate a tissue biopsy. Spinal fluid analysis may reveal a lymphocytic pleocytosis, a raised protein and the presence of oligoclonal bands.

Index terms

  • Inflammatory meningitis
  • Inflammatory meningitis due to certain specified cause
  • Meningitis due to sarcoidosis
Show allHide
  • Meningitis due to Behçet disease
  • Meningitis due to Wegener granulomatosis
  • Meningitis due to systemic lupus erythematosus
  • Meningitis due to Sjögren’s disease
  • Meningitis due to other vasculitides

Exclusions from above levels

  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
Show allHide
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • 8E40.0 – Neoplastic meningitis
  • 8E40.1 – Chemical meningitis
  • 8E40.3 – Arachnoiditis
  • 8E40.Y – Other specified disorders of the meninges excluding infection
  • 8E40.Z – Disorders of the meninges excluding infection, unspecified

Foundation entity

Inflammatory meningitis – http://id.who.int/icd/entity/50907154

Allowed postcoordination axes

Part of: 8E40: Disorders of the meninges excluding infection › 08: Diseases of the nervous system