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2. ICD-10 Codes
3. Chapter - M00-M99
4. Section - M20-M25
5. Category - M20
6. M20.21

M20.21 - Hallux rigidus, right foot

• Applicable to Hallux rigidus, right foot
• The 2025 edition of ICD10-CM M20.21 became effective on October 1, 2024.
• This is the American ICD10-CM version of M20.21 - other international versions of ICD10 M20.21 may differ.
• M20.21 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above M20.21 contain annotation back-references that may be applicable to M20.21:

• Chapter: M00-M99 - Diseases of the musculoskeletal system and connective tissue
• Section: M20-M25 - Other joint disorders
• Category: M20 - Acquired deformities of fingers and toes

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.