ICD-10 Code G44.301 – Post-traumatic headache, unspecified, intractable (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G44.301 – Post-traumatic headache, unspecified, intractable
What it is
This code identifies a headache that begins after head trauma and is not further specified, with the added detail that it is intractable. Use it when the record supports a persistent post-injury headache that is difficult to control.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the chart describes headache after a head injury, with ongoing or refractory pain despite usual management.
When to use this code
Use G44.301 when the provider documents post-traumatic headache, does not name a more specific type, and states it is intractable or refractory. It is appropriate for follow-up visits when the headache persists after the injury. You should code the trauma history separately when documented and required.
Do not use for
Do not use this code for headaches unrelated to trauma or for a more specific post-traumatic headache type that is documented elsewhere. Check documentation if the note does not clearly support intractable status.
Coding tip
Verify both the post-traumatic cause and the intractable designation in the provider note before assigning G44.301.