M21.4 - Flat foot [pes planus] (acquired)
- Applicable to Flat foot [pes planus] (acquired)
- The 2025 edition of ICD10-CM M21.4 became effective on October 1, 2024.
- This is the American ICD10-CM version of M21.4 - other international versions of ICD10 M21.4 may differ.
- M21.4 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- M21.4 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.
- M21.4 - Flat foot [pes planus] (acquired)
- M21.4 - Flat foot [pes planus] (acquired)
- M21.40 - Flat foot [pes planus] (acquired), unspecified foot
- M21.41 - Flat foot [pes planus] (acquired), right foot
- M21.42 - Flat foot [pes planus] (acquired), left foot
Type 1 Excludes
- congenital pes planus (Q66.5-)
Non-Billable/Non-Specific Code
The following codes above M21.4 contain annotation back-references that may be applicable to M21.4:
- 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.
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