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M21.942

Billable

Unspecified acquired deformity of hand, left hand

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

What This Code Means

An abnormal shape or structure of the left hand that developed over time, not present from birth.

Coding Tips

  • •Confirm left hand laterality is documented in the medical record
  • •Consider if a more specific deformity code applies (e.g., swan neck deformity, claw hand)

Code Hierarchy

└M21Other acquired deformities of limbs└M21.9Unspecified acquired deformity of limb and hand└M21.94Unspecified acquired deformity of hand└M21.942Unspecified acquired deformity of hand, left hand
└M21.942Unspecified acquired deformity of hand, left hand

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