ICD-10-CM 2027
ICD-10 code for animal phobia
From the official ICD-10-CM alphabetic index entry “Phobia, phobic › animal”. Page updated September 29, 2026.
About coding animal phobia
The ICD-10-CM code for animal phobia is F40.218 (Other animal type phobia). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on F40.218.
Within F40.21, choose F40.218 (Other animal type phobia) only when documentation doesn't support a more specific option: Arachnophobia (F40.210).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 882 (Neuroses Except Depressive, relative weight 0.9952), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific animal phobia codes (official index)
- spiders F40.210 — Arachnophobia
Common questions about animal phobia ICD-10 codes
What is the ICD-10 code for animal phobia?
- F40.218 — Other animal type phobia. More specific codes apply when the documentation supports them: F40.210.
What is the ICD-10 code for spiders animal phobia?
- F40.210 — Arachnophobia.
Is F40.218 billable?
- Yes. F40.218 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F40.218 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F40.218 as a principal diagnosis.
Is F40.218 a CC or MCC?
- No. F40.218 is neither a CC nor an MCC under MS-DRG v44.0.