`M21.75` Unequal limb length (acquired), femur

Non-billable header with 3 child codes.

Applies from M21 Other acquired deformities of limbs

Excludes1 (never code together)

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

Excludes2 (not included here)

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

Applies from M21.7 Unequal limb length (acquired)

Notes

The site used should correspond to the shorter limb

Codes under M21.75

M21.751 Unequal limb length (acquired), right femur
M21.752 Unequal limb length (acquired), left femur
M21.759 Unequal limb length (acquired), unspecified femur

Code annotations containing back-references to M21.75

Back-references to M21

Type 1 Excludes: M23 Internal derangement of knee ("deformity of knee (M21.-)")
Type 2 Excludes: M24.5 Contracture of joint ("acquired deformities of limbs (M20-M21)")
Type 2 Excludes: M25 Other joint disorder, not elsewhere classified ("acquired deformities of limb (M20-M21)")
Type 2 Excludes: M95 Other acquired deformities of musculoskeletal system and connective tissue ("acquired deformities of limbs (M20-M21)")
Type 1 Excludes: Z89 Acquired absence of limb ("acquired deformities of limbs (M20-M21)")

Diagnosis Index entries for M21.75

Deformity › limb (acquired) › unequal length › short site is › femur

Nearby codes

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 (this code)
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