M21.7 - Unequal limb length (acquired)

  • Applicable to Unequal limb length (acquired)
  • The 2025 edition of ICD10-CM M21.7 became effective on October 1, 2024.
  • This is the American ICD10-CM version of M21.7 - other international versions of ICD10 M21.7 may differ.
  • M21.7 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • M21.7 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.
  • M21.7 - Unequal limb length (acquired)
    • M21.7 - Unequal limb length (acquired)
    • M21.70 - Unequal limb length (acquired), unspecified site
    • M21.72 - Unequal limb length (acquired), humerus
    • M21.721 - Unequal limb length (acquired), right humerus
    • M21.722 - Unequal limb length (acquired), left humerus
    • M21.729 - Unequal limb length (acquired), unspecified humerus
    • M21.73 - Unequal limb length (acquired), ulna and radius
    • M21.731 - Unequal limb length (acquired), right ulna
    • M21.732 - Unequal limb length (acquired), left ulna
    • M21.733 - Unequal limb length (acquired), right radius
    • M21.734 - Unequal limb length (acquired), left radius
    • M21.739 - Unequal limb length (acquired), unspecified ulna and radius
    • M21.75 - Unequal limb length (acquired), femur
    • M21.751 - Unequal limb length (acquired), right femur
    • M21.752 - Unequal limb length (acquired), left femur
    • M21.759 - Unequal limb length (acquired), unspecified femur
    • M21.76 - Unequal limb length (acquired), tibia and fibula
    • M21.761 - Unequal limb length (acquired), right tibia
    • M21.762 - Unequal limb length (acquired), left tibia
    • M21.763 - Unequal limb length (acquired), right fibula
    • M21.764 - Unequal limb length (acquired), left fibula
    • M21.769 - Unequal limb length (acquired), unspecified tibia and fibula

Code Notes

  • The site used should correspond to the shorter limb

The following codes above M21.7 contain annotation back-references that may be applicable to M21.7:

Chapter: M00-M99 Diseases of the musculoskeletal system and connective tissue

Section: M20-M25 Other joint disorders

Category: M21 Other acquired deformities of limbs

length icd 10
 
unequal icd 10
 
Non-Billable/Non-Specific Code

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