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2. ICD-10 Codes
3. Chapter - F01-F99
4. Section - F40-F48
5. Category - F45
6. F45.21

F45.21 - Hypochondriasis

• Applicable to Hypochondriasis
• The 2025 edition of ICD10-CM F45.21 became effective on October 1, 2024.
• This is the American ICD10-CM version of F45.21 - other international versions of ICD10 F45.21 may differ.
• F45.21 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• Hypochondriacal neurosis
• Illness anxiety disorder

The following codes above F45.21 contain annotation back-references that may be applicable to F45.21:

• Chapter: F01-F99 - Mental, Behavioral and Neurodevelopmental disorders
• Section: F40-F48 - Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
• Category: F45 - Somatoform disorders

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.