M91.21
BillableCoxa plana, right hip
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A hip deformity where the ball of the thighbone becomes flattened on the right side, affecting the hip joint's shape and function.
Coding Tips
- •Confirm right hip laterality is clearly documented before assigning this code
- •This condition may result from previous Legg-Calvé-Perthes disease or other hip pathology
Code Hierarchy
└M91Juvenile osteochondrosis of hip and pelvis└M91.2Coxa plana└M91.21Coxa plana, right hip
└M91.21Coxa plana, right hip