ICD-10 Code F40.243 – Fear of flying (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F40.243 – Fear of flying
What it is
F40.243 identifies fear of flying, a specific phobia involving marked anxiety about air travel. Use it when the fear is the primary reason for evaluation and is documented as a distinct condition.
Clinical signs
Patients may report intense fear, avoidance of flights, or distress before and during air travel. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states fear of flying, aviophobia, or a specific phobia tied to air travel. It fits cases where the phobia causes avoidance, panic, or significant distress. Confirm the diagnosis is documented by the treating clinician.
Do not use for
Do not use it for general anxiety, motion sickness, or fear unrelated to flying. If the chart does not specify fear of flying, check documentation.
Coding tip
Code F40.243 only when the provider documents flying as the specific phobic trigger.