M21.161
BillableVarus deformity, not elsewhere classified, right knee
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A condition where the right knee angles inward, creating a knock-kneed appearance where the knees turn toward each other.
Coding Tips
- •Ensure right knee is clearly documented; this is distinct from valgus deformity which angles outward
- •Document any functional impairment or pain associated with the deformity
Code Hierarchy
└M21Other acquired deformities of limbs└M21.1Varus deformity, not elsewhere classified└M21.16Varus deformity, not elsewhere classified, knee└M21.161Varus deformity, not elsewhere classified, right knee
└M21.161Varus deformity, not elsewhere classified, right knee