10ICD Code Hub

F40.21

Header — not billable

Animal type phobia

The ICD-10 code for animal type phobia is F40.21.

F40.21 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 2 more specific codes below.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under F40.21

Related codes in this category