ICD-10 Code F41.0 – Panic disorder [episodic paroxysmal anxiety] (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F41.0 – Panic disorder [episodic paroxysmal anxiety]
What it is
F41.0 identifies panic disorder, a condition marked by recurrent, unexpected panic attacks and ongoing concern about having more attacks. Use this code when the record clearly documents panic disorder rather than a single isolated anxiety episode.
Clinical signs
Typical features include sudden episodes of intense fear or discomfort with symptoms such as palpitations, shortness of breath, chest tightness, dizziness, trembling, or fear of losing control. Clinical features vary; refer to documentation.
When to use this code
Use F41.0 when the clinician diagnoses panic disorder and the note supports recurrent panic attacks. It is appropriate when documentation describes episodic paroxysmal anxiety with persistent worry or behavior change related to attacks. Check documentation if the record only says “anxiety” without panic attacks.
Do not use for
Do not use this code for generalized anxiety, phobias, or a single panic attack without a panic disorder diagnosis. If another mental health condition better explains the symptoms, code that condition instead.
Coding tip
Code F41.0 only when the provider explicitly links the symptoms to panic disorder; otherwise, you should query or check documentation.