M20.12
BillableHallux valgus (acquired), left foot
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A bunion on the left foot, which is an enlargement and misalignment of the big toe joint that develops over time. The big toe angles toward the other toes, causing pain and difficulty with footwear.
Coding Tips
- •This code is specific to the left foot; verify laterality in documentation before assigning
- •Consider documenting severity and functional limitations to support medical necessity for treatment
Code Hierarchy
└M20Acquired deformities of fingers and toes└M20.1Hallux valgus (acquired)└M20.12Hallux valgus (acquired), left foot
└M20.12Hallux valgus (acquired), left foot