F40.210

ICD-10Billable

Arachnophobia

Official ICD-10-CM descriptor (FY2026)

Arachnophobia

F40.210 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Fear of spiders

Related codes in F4021

F40.218Other animal type phobia

Where this code sits

Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
Parent code: F40.21

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.