ICD-10 Code: G44.321 – Chronic post-traumatic headache, intractable

ICD-10 code G44.321 corresponds to Chronic post-traumatic headache, intractable. This code is classified under the chapter G44 Other headache syndromes, which is part of the G40-G47: Episodic and paroxysmal disorders category.

The parent chapter is Diseases of the nervous system.