ICD-10 Code G44.30 – Post-traumatic headache, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G44.30 – Post-traumatic headache, unspecified
What it is
G44.30 identifies a headache that begins after head trauma or another injury and is not further specified in the record. Use it when the documentation confirms a post-traumatic headache but does not describe a more specific type.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see headache complaints following a recent or prior injury, with the provider linking the pain to the trauma rather than to a primary headache disorder.
When to use this code
Use this code when the clinician documents post-traumatic headache and does not specify acute, chronic, or another subtype. It is appropriate when the record ties the headache to head injury, concussion, or similar trauma, but details are limited. Check documentation for timing and cause.
Do not use for
Do not use this code for headaches without a documented traumatic cause. If the record specifies a different headache type or a more specific post-traumatic code, choose that code instead.
Coding tip
Confirm that the provider explicitly links the headache to trauma before assigning G44.30.