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2. ICD-10 Codes
3. Chapter - M00-M99
4. Section - M20-M25
5. Category - M21
6. M21.86

M21.86 - Other specified acquired deformities of lower leg

• Applicable to Other specified acquired deformities of lower leg
• The 2025 edition of ICD10-CM M21.86 became effective on October 1, 2024.
• This is the American ICD10-CM version of M21.86 - other international versions of ICD10 M21.86 may differ.
• M21.86 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• M21.86 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.

The following codes above M21.86 contain annotation back-references that may be applicable to M21.86:

• Chapter: M00-M99 - Diseases of the musculoskeletal system and connective tissue
• Section: M20-M25 - Other joint disorders
• Category: M21 - Other acquired deformities of limbs

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.