Other acquired deformities of limbs M21- >

Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M21. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • acquired absence of limb (
    ICD-10-CM Diagnosis Code Z89
    • Z89 Acquired absence of limb
      • Z89.0 Acquired absence of thumb and other finger(s)...
        • Z89.01 Acquired absence of thumb
          • Z89.011 Acquired absence of right thumb
          • Z89.012 Acquired absence of left thumb
          • Z89.019 Acquired absence of unspecified thumb
        • Z89.02 Acquired absence of other finger(s)
          • Z89.021 Acquired absence of right finger(s)
          • Z89.022 Acquired absence of left finger(s)
          • Z89.029 Acquired absence of unspecified finger(s)
      • Z89.1 Acquired absence of hand and wrist
        • Z89.11 Acquired absence of hand
          • Z89.111 Acquired absence of right hand
          • Z89.112 Acquired absence of left hand
          • Z89.119 Acquired absence of unspecified hand
        • Z89.12 Acquired absence of wrist
          • Z89.121 Acquired absence of right wrist
          • Z89.122 Acquired absence of left wrist
          • Z89.129 Acquired absence of unspecified wrist
      • Z89.2 Acquired absence of upper limb above wrist
        • Z89.20 Acquired absence of upper limb, unspecified l...
          • Z89.201 Acquired absence of right upper limb, unspeci...
          • Z89.202 Acquired absence of left upper limb, unspecif...
          • Z89.209 Acquired absence of unspecified upper limb, u...
        • Z89.21 Acquired absence of upper limb below elbow
          • Z89.211 Acquired absence of right upper limb below el...
          • Z89.212 Acquired absence of left upper limb below elb...
          • Z89.219 Acquired absence of unspecified upper limb be...
        • Z89.22 Acquired absence of upper limb above elbow
          • Z89.221 Acquired absence of right upper limb above el...
          • Z89.222 Acquired absence of left upper limb above elb...
          • Z89.229 Acquired absence of unspecified upper limb ab...
        • Z89.23 Acquired absence of shoulder
          • Z89.231 Acquired absence of right shoulder
          • Z89.232 Acquired absence of left shoulder
          • Z89.239 Acquired absence of unspecified shoulder
      • Z89.4 Acquired absence of toe(s), foot, and ankle
        • Z89.41 Acquired absence of great toe
          • Z89.411 Acquired absence of right great toe
          • Z89.412 Acquired absence of left great toe
          • Z89.419 Acquired absence of unspecified great toe
        • Z89.42 Acquired absence of other toe(s)
          • Z89.421 Acquired absence of other right toe(s)
          • Z89.422 Acquired absence of other left toe(s)
          • Z89.429 Acquired absence of other toe(s), unspecified...
        • Z89.43 Acquired absence of foot
          • Z89.431 Acquired absence of right foot
          • Z89.432 Acquired absence of left foot
          • Z89.439 Acquired absence of unspecified foot
        • Z89.44 Acquired absence of ankle
          • Z89.441 Acquired absence of right ankle
          • Z89.442 Acquired absence of left ankle
          • Z89.449 Acquired absence of unspecified ankle
      • Z89.5 Acquired absence of leg below knee
        • Z89.51 Acquired absence of leg below knee
          • Z89.511 Acquired absence of right leg below knee
          • Z89.512 Acquired absence of left leg below knee
          • Z89.519 Acquired absence of unspecified leg below kne...
        • Z89.52 Acquired absence of knee
          • Z89.521 Acquired absence of right knee
          • Z89.522 Acquired absence of left knee
          • Z89.529 Acquired absence of unspecified knee
      • Z89.6 Acquired absence of leg above knee
        • Z89.61 Acquired absence of leg above knee
          • Z89.611 Acquired absence of right leg above knee
          • Z89.612 Acquired absence of left leg above knee
          • Z89.619 Acquired absence of unspecified leg above kne...
        • Z89.62 Acquired absence of hip
          • Z89.621 Acquired absence of right hip joint
          • Z89.622 Acquired absence of left hip joint
          • Z89.629 Acquired absence of unspecified hip joint
      • Z89.9 Acquired absence of limb, unspecified
    Z89.-
    )
  • congenital absence of limbs (
    ICD-10-CM Diagnosis Code Q71

    Reduction defects of upper limb

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Q71
    -
    ICD-10-CM Diagnosis Code Q73

    Reduction defects of unspecified limb

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Q73
    )
  • congenital deformities and malformations of limbs (
    ICD-10-CM Diagnosis Code Q65

    Congenital deformities of hip

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Q65
    -
    ICD-10-CM Diagnosis Code Q66

    Congenital deformities of feet

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • reduction defects of feet (Q72.-)
    • valgus deformities (acquired) (M21.0-)
    • varus deformities (acquired) (M21.1-)
    Q66
    ,
    ICD-10-CM Diagnosis Code Q68

    Other congenital musculoskeletal deformities

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • reduction defects of limb(s) (Q71-Q73)
    Type 2 Excludes
    • congenital myotonic chondrodystrophy (G71.13)
    Q68
    -
    ICD-10-CM Diagnosis Code Q74

    Other congenital malformations of limb(s)

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Q74
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (M21) and the excluded code together.
  • acquired deformities of fingers or toes (
    ICD-10-CM Diagnosis Code M20
    • M20 Acquired deformities of fingers and toes
      • M20.0 Deformity of finger(s)
        • M20.00 Unspecified deformity of finger(s)
          • M20.001 Unspecified deformity of right finger(s)
          • M20.002 Unspecified deformity of left finger(s)
          • M20.009 Unspecified deformity of unspecified finger(s...
        • M20.01 Mallet finger
          • M20.011 …… of right finger(s)
          • M20.012 …… of left finger(s)
          • M20.019 …… of unspecified finger(s)
        • M20.02 Boutonnière deformity
          • M20.021 …… of right finger(s)
          • M20.022 …… of left finger(s)
          • M20.029 Boutonnière deformity of unspecified finger(s...
        • M20.03 Swan-neck deformity
          • M20.031 …… of right finger(s)
          • M20.032 …… of left finger(s)
          • M20.039 …… of unspecified finger(s)
        • M20.09 Other deformity of finger(s)
          • M20.091 Other deformity of right finger(s)
          • M20.092 Other deformity of left finger(s)
          • M20.099 Other deformity of finger(s), unspecified fin...
      • M20.1 Hallux valgus (acquired)
      • M20.2 Hallux rigidus
      • M20.3 Hallux varus (acquired)
      • M20.4 Other hammer toe(s) (acquired)
        • M20.40 Other hammer toe(s) (acquired), unspecified f...
        • M20.41 …… right foot
        • M20.42 …… left foot
      • M20.5 Other deformities of toe(s) (acquired)
        • M20.5X Other deformities of toe(s) (acquired)
          • M20.5X1 Other deformities of toe(s) (acquired), right...
          • M20.5X2 Other deformities of toe(s) (acquired), left ...
          • M20.5X9 Other deformities of toe(s) (acquired), unspe...
      • M20.6 Acquired deformities of toe(s), unspecified
        • M20.60 Acquired deformities of toe(s), unspecified, ...
        • M20.61 Acquired deformities of toe(s), unspecified, ...
        • M20.62 Acquired deformities of toe(s), unspecified, ...
    M20.-
    )
  • coxa plana (
    ICD-10-CM Diagnosis Code M91.2

    Coxa plana

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Hip deformity due to previous juvenile osteochondrosis
    M91.2
    )
Codes
  • M21 Other acquired deformities of limbs
    • M21.0 Valgus deformity, not elsewhere classified
      • M21.00 …… 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 …… 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 …… 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)
    • M21.4 Flat foot [pes planus] (acquired)
    • M21.5 Acquired clawhand, clubhand, clawfoot and clubfoot
    • M21.6 Other acquired deformities of foot
      • M21.61 Bunion
      • M21.62 Bunionette
      • 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 …… 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
      • M21.95 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