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M21.721

Billable

Unequal limb length (acquired), right humerus

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

The right upper arm bone (humerus) is shorter than the left, causing unequal limb length acquired after birth.

Coding Tips

  • •Ensure documentation specifies the right humerus and that the condition is acquired, not congenital
  • •Consider documenting the cause (trauma, surgery, disease) if known

Code Hierarchy

└M21Other acquired deformities of limbs└M21.7Unequal limb length (acquired)└M21.72Unequal limb length (acquired), humerus└M21.721Unequal limb length (acquired), right humerus
└M21.721Unequal limb length (acquired), right humerus

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