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14.2 Headache unspecified

Previously used term:

Headache not classifiable.

Diagnostic criteria:
  1. Headache is or has been present
  2. Not enough information is available to classify the headache at any level of this classification.

It is also apparent that a diagnosis must be made in a large number of patients where very little information is available, allowing only to state that they have headache but not which type of headache. Such patients are coded as 14.2 Headache unspecified. This code, however, must never be used as an excuse for not gathering detailed information about a headache when such information is available. It should be used only in situations where information cannot be obtained because the patient is dead, unable to communicate or unavailable.