Coxa plana
Coxa plana
M91.2 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.
Billable codes in this category
Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.
M91.20 classifies coxa plana of an unspecified hip — a flattening deformity of the femoral head resulting from prior juvenile osteochondrosis (Legg-Calvé-Perthes disease), where the affected side is not documented.
Coxa plana of the right hip — a femoral head deformity resulting from avascular necrosis and remodeling after juvenile osteochondrosis (Legg-Calvé-Perthes disease), leaving a flattened, misshapen femoral head on the right side.
M91.22 identifies coxa plana of the left hip — a flattening deformity of the femoral head resulting from previous juvenile osteochondrosis (Legg-Calvé-Perthes disease) of the left hip.
Inclusion & exclusion notes
Includes
- Hip deformity due to previous juvenile osteochondrosis