ICD-11 classes
08 Diseases of the nervous system
Non-viral and unspecified infections of the central nervous...
1D01 — Infectious meningitis not elsewhere classified
1D01.0 — Bacterial meningitis
8E41 — Pachymeningitis
ICD-11 8E41 — Pachymeningitis
Inflammation of the pachymeninges resulting in localised or diffuse thickening of the dura mater which can be caused by chronic infection, inflammatory and immune-mediated disorders and malignancies. The cranial and/or the spinal dura may be affected. Neurological features includes headache, visual disturbance, cranial nerve palsies, ataxia and with spinal involvement, limb weakness, sensory impairment and sphincter disturbances . Diagnosis may be aided by neuroimaging and spinal fluid analysis.
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code 8E41 contains 4 clarifying diagnoses:
- 8E41.0 — Pachymeningitis due to infection
- 8E41.1 — Idiopathic hypertrophic pachymeningitis
- 8E41.Y — Other specified pachymeningitis
- 8E41.Z — Pachymeningitis, unspecified
The diagnosis is coded elsewhere:
- Bacterial meningitis #672
- Pachymeningitis #676
- Other disorders of the nervous system #7771
- Pachymeningitis #7780