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F40.210

F40.210: Arachnophobia

Billable / specific codeICD-10-CM

F40.210 is a billable, specific ICD-10-CM code for arachnophobia. It is valid for submission on a claim.

Check F40.210 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Fear of spiders

Excludes2 inherited from the categories above F40.210

Not part of this code, but both may be coded when both are present.

Written on F40.2: Specific (isolated) phobias

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

F40.210 is named in 10 Medicare coverage policies: 9 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56756Billing and Coding: Home Health - Psychiatric Care
  • A56937Billing and Coding: Psychiatry and Psychology Services
  • A57065Billing and Coding: Outpatient Psychiatry and Psychology Services

Alphabetic index entries that lead here

  • Arachnophobia
  • Phobia, phobic›animal›spiders
  • Phobia, phobic›specific›animal›spiders

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under F40.21

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.