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M21

Non-Billable (Header)

Other acquired deformities of limbs

Excludes 1 — Do NOT code together

  • acquired absence of limb (Z89.-)
  • congenital absence of limbs (Q71-Q73)
  • congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)

Excludes 2 — Not included here, may code separately

  • acquired deformities of fingers or toes (M20.-)
  • coxa plana (M91.2)

Child Codes

M21.0Valgus deformity, not elsewhere classified
M21.1Varus deformity, not elsewhere classified
M21.2Flexion deformity
M21.3Wrist or foot drop (acquired)
M21.4Flat foot [pes planus] (acquired)
M21.5Acquired clawhand, clubhand, clawfoot and clubfoot
M21.6Other acquired deformities of foot
M21.7Unequal limb length (acquired)
M21.8Other specified acquired deformities of limbs
M21.9Unspecified acquired deformity of limb and hand

Code Hierarchy

└M21Other acquired deformities of limbs
└M21Other acquired deformities of limbs

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