M21
Other acquired deformities of limbs
Non-billableCategory
Coding Guidelines
Excludes1 (Mutually Exclusive)
These codes should never be used together with M21
- acquired absence of limb (Z89.-)
- Q71.-Q73 - congenital absence of limbs (Q71-Q73)
- congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)
Excludes2 (Not Included Here)
These conditions are not part of this code but may be reported additionally if documented
- acquired deformities of fingers or toes (M20.-)
- M91.2 - coxa plana (M91.2)
Specific Codes (10)
M21.0Category
Valgus deformity, not elsewhere classified
M21.1Category
Varus deformity, not elsewhere classified
M21.2Category
Flexion deformity
M21.3Category
Wrist or foot drop (acquired)
M21.4Category
Flat foot [pes planus] (acquired)
M21.5Category
Acquired clawhand, clubhand, clawfoot and clubfoot
M21.6Category
Other acquired deformities of foot
M21.7Category
Unequal limb length (acquired)
M21.8Category
Other specified acquired deformities of limbs
M21.9Category
Unspecified acquired deformity of limb and hand
