Section
M21
Other acquired deformities of limbs
Hierarchy
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M00-M99 Diseases of the musculoskeletal system and connective tissue (M00-M99)
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M20-M25 Other joint disorders (M20-M25)
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M21 Other acquired deformities of limbs
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M21.0 Valgus deformity, not elsewhere classified
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M21.1 Varus deformity, not elsewhere classified
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M21.2 Flexion deformity
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M21.3 Wrist or foot drop (acquired)
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M21.4 Flat foot [pes planus] (acquired)
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M21.5 Acquired clawhand, clubhand, clawfoot and clubfoot
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M21.6 Other acquired deformities of foot
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M21.7 Unequal limb length (acquired)
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M21.8 Other specified acquired deformities of limbs
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M21.9 Unspecified acquired deformity of limb and hand
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Notes
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Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Excludes 1
M21
- Z89 Acquired absence of limb
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congenital absence of limbs (Q71-Q73)
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congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)
Excludes 2
M21
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acquired deformities of fingers or toes (M20.-)
- M20 Acquired deformities of fingers and toes
- M91.2 Coxa plana
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joints of the spine (M40-M54)
- M40-M54 Dorsopathies (M40-M54)
- L40.5 Arthropathic psoriasis
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certain conditions originating in the perinatal period (P04-P96)
- A00-B99 Certain infectious and parasitic diseases (A00-B99)
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compartment syndrome (traumatic) (T79.A-)
- T79.A Traumatic compartment syndrome
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complications of pregnancy, childbirth and the puerperium (O00-O9A)
- O00-O9A Pregnancy, childbirth and the puerperium (O00-O9A)
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congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
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endocrine, nutritional and metabolic diseases (E00-E88)
- S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
- C00-D49 Neoplasms (C00-D49)
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symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)