ICOP pain due to lesion or disease of the glossopharyngeal nerve glossopharyngeal neuropathic pain 2025-07-02T19:24:40Z realted ICOP number: 4.2.2.1 ICOP number: 4.2.2 Glossopharyngeal nerve associated pain that occurs within the distribution of the glossopharyngeal nerve (posterior part of the tongue, tonsillar fossa, pharynx or beneath the angle of the lower jaw). In addition, pain is commonly perceived in the ipsilateral ear. The primary pain is usually continuous or near-continuous, and commonly described as burning or squeezing, or likened to pins and needles. Brief paroxysms may be superimposed but they are not the predominant pain type. This combination distinguishes 4.2.2 Glossopharyngeal neuropathic pain from 4.2.1 Glossopharyngeal neuralgia. Sensory deficits may be present in the ipsilateral posterior part of the tongue and tonsillar fossa, and the gag reflex may be weak or missing. PMID:32103673 glossopharyngeal neuropathic pain due to a known cause Ava E. Cunningham