Other acquired deformities of limbs M21

The ICD10 code for the diagnosis "Other acquired deformities of limbs" is "M21". M21 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • M21 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM M21 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of M21 - other international versions of ICD-10 M21 may differ.
Type 1 Excludes:
  • acquired absence of limb (Z89.-)
  • congenital absence of limbs (Q71-Q73)
  • congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)
Type 2 Excludes:
  • acquired deformities of fingers or toes (M20.-)
  • coxa plana (M91.2)

Codes: = Billable

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