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M21.70

Billable

Unequal limb length (acquired), unspecified site

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

What This Code Means

One limb is noticeably shorter than the other due to an acquired condition, but the specific location is not documented.

Coding Tips

  • •This is a non-specific code; attempt to identify the exact bone or limb involved for more precise coding
  • •Document the measurement difference if available to support medical necessity

Code Hierarchy

└M21Other acquired deformities of limbs└M21.7Unequal limb length (acquired)└M21.70Unequal limb length (acquired), unspecified site
└M21.70Unequal limb length (acquired), unspecified site

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