M21.079
BillableValgus deformity, not elsewhere classified, unspecified ankle
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
An abnormal outward bending or angling of the ankle joint when the specific side is not documented or is bilateral.
Coding Tips
- •Use only when laterality cannot be determined from available documentation
- •Query provider to determine if unilateral or bilateral for more specific coding
Code Hierarchy
└M21Other acquired deformities of limbs└M21.0Valgus deformity, not elsewhere classified└M21.07Valgus deformity, not elsewhere classified, ankle└M21.079Valgus deformity, not elsewhere classified, unspecified ankle
└M21.079Valgus deformity, not elsewhere classified, unspecified ankle