ICD-10 Code F40.241 – Acrophobia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F40.241 – Acrophobia
What it is
Acrophobia is an intense, persistent fear of heights. Use this code when the record documents a specific phobia focused on high places or situations involving elevation.
Clinical signs
Patients may report marked fear, panic, or avoidance when near heights, balconies, ladders, or elevated bridges. Clinical features vary; refer to documentation.
When to use this code
Use F40.241 when the clinician documents acrophobia as the diagnosed condition. It fits encounters where fear of heights is the primary reason for evaluation, counseling, or behavioral health assessment. If the note only says “fear of falling” or “dizziness,” check documentation before coding.
Do not use for
Do not use this code for general anxiety, vertigo, or nonspecific fear without a documented phobia. Do not assign it when the record identifies another specific phobia instead.
Coding tip
Code the documented phobia term exactly and confirm it is not part of a broader anxiety disorder diagnosis.