Chronic post-traumatic headache, not intractable

This code describes a persistent headache disorder that develops following a head injury, lasting for more than three months. The headache is not adequately managed with current treatment, but the patient is not experiencing severe, unremitting pain that significantly impairs daily function.

Use this code for patients presenting with a history of head trauma and ongoing headaches that have persisted for at least 90 days. Documentation should clearly state the chronic nature of the headache and indicate that it is not intractable, meaning it responds to some degree to treatment, even if not fully resolved.

• Distinguish from acute post-traumatic headache (G44.31-) which resolves within three months of injury.
• Ensure documentation specifies "not intractable" to differentiate from G44.309 (intractable).
• Consider sequencing this code after the primary head injury code if the injury is still being treated.