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IHS Diagnosis ICD-10
13.1.2 Symptomatic trigeminal neuralgia [G53.80] + [code to specify aetiology] G44.847  

Description:

Pain indistinguishable from 13.1.1 Classical trigeminal neuralgia but caused by a demonstrable structural lesion other than vascular compression.

Diagnostic criteria:

  1. Paroxysmal attacks of pain lasting from a fraction of a second to 2 minutes, with or without persistence of aching between paroxysms, affecting one or more divisions of the trigeminal nerve and fulfilling criteria B and C
  2. Pain has at least one of the following characteristics:
    1. intense, sharp, superficial or stabbing
    2. precipitated from trigger areas or by trigger factors
  3. Attacks are stereotyped in the individual patient
  4. A causative lesion, other than vascular compression, has been demonstrated by special investigations and/or posterior fossa exploration

Comment:

There may be sensory impairment in the distribution of the appropriate trigeminal division. 13.1.2 Symptomatic trigeminal neuralgia demonstrates no refractory period after a paroxysm, unlike 13.1.1 Classical trigeminal neuralgia.

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