M21.16

Varus deformity, not elsewhere classified, knee

Non-billable header

M21.16 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Not coded here — never report together with this code.

metatarsus varus (Q66.22-) (from M21.1)
tibia vara (M92.51-) (from M21.1)
acquired absence of limb (Z89.-) (from M21)
congenital absence of limbs (Q71-Q73) (from M21)
congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74) (from M21)

Not included here — may be reported together when both conditions exist.

arthropathic psoriasis (L40.5-) (from M21)
certain conditions originating in the perinatal period (P04-P96) (from M21)
certain infectious and parasitic diseases (A00-B99) (from M21)
compartment syndrome (traumatic) (T79.A-) (from M21)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M21)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M21)
endocrine, nutritional and metabolic diseases (E00-E88) (from M21)
injury, poisoning and certain other consequences of external causes (S00-T88) (from M21)
neoplasms (C00-D49) (from M21)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M21)
joints of the spine (M40-M54) (from M21)
acquired deformities of fingers or toes (M20.-) (from M21)
coxa plana (M91.2) (from M21)