M21 Other acquired deformities of limbs

Coding Notes

Active
Non-billable / Non-specific, not valid for HIPAA-covered transactions

Type 1 Excludes

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

Tyoe 2 Excludes

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

Child Codes


Sibling Codes


View in Tabular

Code Title
M00-M99 Diseases of the musculoskeletal system and connective tissue (M00-M99)
M20-M25 Other joint disorders (M20-M25)
M21 Other acquired deformities of limbs
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)

M21.0 Valgus deformity, not elsewhere classified
M21.00 Valgus deformity, not elsewhere classified, unspecified site
M21.02 Valgus deformity, not elsewhere classified, elbow
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
M21.05 Valgus deformity, not elsewhere classified, hip
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
M21.06 Valgus deformity, not elsewhere classified, knee
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
M21.07 Valgus deformity, not elsewhere classified, ankle
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
M21.1 Varus deformity, not elsewhere classified
M21.10 Varus deformity, not elsewhere classified, unspecified site
M21.12 Varus deformity, not elsewhere classified, elbow
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
M21.15 Varus deformity, not elsewhere classified, hip
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
M21.16 Varus deformity, not elsewhere classified, knee
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
M21.17 Varus deformity, not elsewhere classified, ankle
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
M21.2 Flexion deformity
M21.20 Flexion deformity, unspecified site
M21.21 Flexion deformity, shoulder
M21.211 Flexion deformity, right shoulder
M21.212 Flexion deformity, left shoulder
M21.219 Flexion deformity, unspecified shoulder
M21.22 Flexion deformity, elbow
M21.221 Flexion deformity, right elbow
M21.222 Flexion deformity, left elbow
M21.229 Flexion deformity, unspecified elbow
M21.23 Flexion deformity, wrist
M21.231 Flexion deformity, right wrist
M21.232 Flexion deformity, left wrist
M21.239 Flexion deformity, unspecified wrist
M21.24 Flexion deformity, finger joints
M21.241 Flexion deformity, right finger joints
M21.242 Flexion deformity, left finger joints
M21.249 Flexion deformity, unspecified finger joints
M21.25 Flexion deformity, hip
M21.251 Flexion deformity, right hip
M21.252 Flexion deformity, left hip
M21.259 Flexion deformity, unspecified hip
M21.26 Flexion deformity, knee
M21.261 Flexion deformity, right knee
M21.262 Flexion deformity, left knee
M21.269 Flexion deformity, unspecified knee
M21.27 Flexion deformity, ankle and toes
M21.271 Flexion deformity, right ankle and toes
M21.272 Flexion deformity, left ankle and toes
M21.279 Flexion deformity, unspecified ankle and toes
M21.3 Wrist or foot drop (acquired)
M21.33 Wrist drop (acquired)
M21.331 Wrist drop, right wrist
M21.332 Wrist drop, left wrist
M21.339 Wrist drop, unspecified wrist
M21.37 Foot drop (acquired)
M21.371 Foot drop, right foot
M21.372 Foot drop, left foot
M21.379 Foot drop, unspecified foot
M21.4 Flat foot [pes planus] (acquired)
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
M21.5 Acquired clawhand, clubhand, clawfoot and clubfoot
M21.51 Acquired clawhand
M21.511 Acquired clawhand, right hand
M21.512 Acquired clawhand, left hand
M21.519 Acquired clawhand, unspecified hand
M21.52 Acquired clubhand
M21.521 Acquired clubhand, right hand
M21.522 Acquired clubhand, left hand
M21.529 Acquired clubhand, unspecified hand
M21.53 Acquired clawfoot
M21.531 Acquired clawfoot, right foot
M21.532 Acquired clawfoot, left foot
M21.539 Acquired clawfoot, unspecified foot
M21.54 Acquired clubfoot
M21.541 Acquired clubfoot, right foot
M21.542 Acquired clubfoot, left foot
M21.549 Acquired clubfoot, unspecified foot
M21.6 Other acquired deformities of foot
M21.61 Bunion
M21.611 Bunion of right foot
M21.612 Bunion of left foot
M21.619 Bunion of unspecified foot
M21.62 Bunionette
M21.621 Bunionette of right foot
M21.622 Bunionette of left foot
M21.629 Bunionette of unspecified foot
M21.6X Other acquired deformities of 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
M21.7 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
M21.8 Other specified acquired deformities of limbs
M21.80 Other specified acquired deformities of unspecified limb
M21.82 Other specified acquired deformities of upper arm
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
M21.83 Other specified acquired deformities of forearm
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
M21.85 Other specified acquired deformities of thigh
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
M21.86 Other specified acquired deformities of lower leg
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
M21.9 Unspecified acquired deformity of limb and hand
M21.90 Unspecified acquired deformity of unspecified limb
M21.92 Unspecified acquired deformity of upper arm
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
M21.93 Unspecified acquired deformity of forearm
M21.931 Unspecified acquired deformity of right forearm
M21.932 Unspecified acquired deformity of left forearm
M21.939 Unspecified acquired deformity of unspecified forearm
M21.94 Unspecified acquired deformity of hand
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
M21.95 Unspecified acquired deformity of thigh
M21.951 Unspecified acquired deformity of right thigh
M21.952 Unspecified acquired deformity of left thigh
M21.959 Unspecified acquired deformity of unspecified thigh
M21.96 Unspecified acquired deformity of lower leg
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