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ICDMine.com › Browse ICD-10-CM Codes › Ch. 13: Diseases of the musculoskeletal system and connective tissue (M00-M99) › Other joint disorders (M20-M25) › M21 Other acquired deformities of limbs › M21.1

M21.1Varus deformity, not elsewhere classified

ICD-10-CM category (non-billable header) code — part of Other joint disorders (M20-M25)

Code Details

Billable	No — use a more specific child code
Chapter	Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
Section	Other joint disorders (M20-M25)
Parent code	M21 — Other acquired deformities of limbs

Coding Notes

Excludes1 (never code both together)

metatarsus varus (Q66.22-)
tibia vara (M92.51-)

Subcategories (5)

M21.10 Varus deformity, not elsewhere classified, unspecified site
M21.12 Varus deformity, not elsewhere classified, elbow
M21.15 Varus deformity, not elsewhere classified, hip
M21.16 Varus deformity, not elsewhere classified, knee
M21.17 Varus deformity, not elsewhere classified, ankle

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