| ICD-10 Code | Description |
| M21.00 | Valgus deformity, not elsewhere classified, unspecified site |
| M21.021 | Valgus deformity, not elsewhere classified, right elbow |
| M21.022 | Valgus deformity, not elsewhere classified, left elbow |
| M21.029 | Valgus deformity, not elsewhere classified, unspecified elbow |
| M21.051 | Valgus deformity, not elsewhere classified, right hip |
| M21.052 | Valgus deformity, not elsewhere classified, left hip |
| M21.059 | Valgus deformity, not elsewhere classified, unspecified hip |
| M21.061 | Valgus deformity, not elsewhere classified, right knee |
| M21.062 | Valgus deformity, not elsewhere classified, left knee |
| M21.069 | Valgus deformity, not elsewhere classified, unspecified knee |
| M21.071 | Valgus deformity, not elsewhere classified, right ankle |
| M21.072 | Valgus deformity, not elsewhere classified, left ankle |
| M21.079 | Valgus deformity, not elsewhere classified, unspecified ankle |
| M21.10 | Varus deformity, not elsewhere classified, unspecified site |
| M21.121 | Varus deformity, not elsewhere classified, right elbow |
| M21.122 | Varus deformity, not elsewhere classified, left elbow |
| M21.129 | Varus deformity, not elsewhere classified, unspecified elbow |
| M21.151 | Varus deformity, not elsewhere classified, right hip |
| M21.152 | Varus deformity, not elsewhere classified, left hip |
| M21.159 | Varus deformity, not elsewhere classified, unspecified |
| M21.161 | Varus deformity, not elsewhere classified, right knee |
| M21.162 | Varus deformity, not elsewhere classified, left knee |
| M21.169 | Varus deformity, not elsewhere classified, unspecified knee |
| M21.171 | Varus deformity, not elsewhere classified, right ankle |
| M21.172 | Varus deformity, not elsewhere classified, left ankle |
| M21.179 | Varus deformity, not elsewhere classified, unspecified ankle |
| M21.20 | Flexion deformity, unspecified site |
| M21.211 | Flexion deformity, right shoulder |
| M21.212 | Flexion deformity, left shoulder |
| M21.219 | Flexion deformity, unspecified shoulder |
| M21.221 | Flexion deformity, right elbow |
| M21.222 | Flexion deformity, left elbow |
| M21.229 | Flexion deformity, unspecified elbow |
| M21.231 | Flexion deformity, right wrist |
| M21.232 | Flexion deformity, left wrist |
| M21.239 | Flexion deformity, unspecified wrist |
| M21.241 | Flexion deformity, right finger joints |
| M21.242 | Flexion deformity, left finger joints |
| M21.249 | Flexion deformity, unspecified finger joints |
| M21.251 | Flexion deformity, right hip |
| M21.252 | Flexion deformity, left hip |
| M21.259 | Flexion deformity, unspecified hip |
| M21.261 | Flexion deformity, right knee |
| M21.262 | Flexion deformity, left knee |
| M21.269 | Flexion deformity, unspecified knee |
| M21.271 | Flexion deformity, right ankle and toes |
| M21.272 | Flexion deformity, left ankle and toes |
| M21.279 | Flexion deformity, unspecified ankle and toes |
| M21.331 | Wrist drop, right wrist |
| M21.332 | Wrist drop, left wrist |
| M21.339 | Wrist drop, unspecified wrist |
| M21.371 | Foot drop, right foot |
| M21.372 | Foot drop, left foot |
| M21.379 | Foot drop, unspecified foot |
| 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 |
| M21.511 | Acquired clawhand, right hand |
| M21.512 | Acquired clawhand, left hand |
| M21.519 | Acquired clawhand, unspecified hand |
| M21.521 | Acquired clubhand, right hand |
| M21.522 | Acquired clubhand, left hand |
| M21.529 | Acquired clubhand, unspecified hand |
| M21.531 | Acquired clawfoot, right foot |
| M21.532 | Acquired clawfoot, left foot |
| M21.539 | Acquired clawfoot, unspecified foot |
| M21.541 | Acquired clubfoot, right foot |
| M21.542 | Acquired clubfoot, left foot |
| M21.549 | Acquired clubfoot, unspecified foot |
| M21.611 | Bunion of right foot |
| M21.612 | Bunion of left foot |
| M21.619 | Bunion of unspecified foot |
| M21.621 | Bunionette of right foot |
| M21.622 | Bunionette of left foot |
| M21.629 | Bunionette of unspecified foot |
| M21.6X1 | Other acquired deformities of right foot |
| M21.6X2 | Other acquired deformities of left foot |
| M21.6X9 | Other acquired deformities of unspecified foot |
| M21.70 | Unequal limb length (acquired), unspecified site |
| M21.721 | Unequal limb length (acquired), right humerus |
| M21.722 | Unequal limb length (acquired), left humerus |
| M21.729 | Unequal limb length (acquired), unspecified humerus |
| M21.731 | 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 |
| M21.751 | Unequal limb length (acquired), right femur |
| M21.752 | Unequal limb length (acquired), left femur |
| M21.759 | Unequal limb length (acquired), unspecified femur |
| 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 |
| M21.80 | Other specified acquired deformities of unspecified limb |
| M21.821 | Other specified acquired deformities of right upper arm |
| M21.822 | Other specified acquired deformities of left upper arm |
| M21.829 | Other specified acquired deformities of unspecified upper arm |
| M21.831 | Other specified acquired deformities of right forearm |
| M21.832 | Other specified acquired deformities of left forearm |
| M21.839 | Other specified acquired deformities of unspecified forearm |
| M21.851 | Other specified acquired deformities of right thigh |
| M21.852 | Other specified acquired deformities of left thigh |
| M21.859 | Other specified acquired deformities of unspecified thigh |
| M21.861 | Other specified acquired deformities of right lower leg |
| M21.862 | Other specified acquired deformities of left lower leg |
| M21.869 | Other specified acquired deformities of unspecified lower leg |
| M21.90 | Unspecified acquired deformity of unspecified limb |
| M21.921 | Unspecified acquired deformity of right upper arm |
| M21.922 | Unspecified acquired deformity of left upper arm |
| M21.929 | Unspecified acquired deformity of unspecified upper arm |
| M21.931 | Unspecified acquired deformity of right forearm |
| M21.932 | Unspecified acquired deformity of left forearm |
| M21.939 | Unspecified acquired deformity of unspecified forearm |
| M21.941 | Unspecified acquired deformity of hand, right hand |
| M21.942 | Unspecified acquired deformity of hand, left hand |
| M21.949 | Unspecified acquired deformity of hand, unspecified hand |
| M21.951 | Unspecified acquired deformity of right thigh |
| M21.952 | Unspecified acquired deformity of left thigh |
| M21.959 | Unspecified acquired deformity of unspecified thigh |
| M21.961 | Unspecified acquired deformity of right lower leg |
| M21.962 | Unspecified acquired deformity of left lower leg |
| M21.969 | Unspecified acquired deformity of unspecified lower leg |
