Unequal limb length (acquired)
ICD-10 M21.7 is a billable code used to indicate a diagnosis of unequal limb length (acquired).
Unequal limb length (acquired) refers to a condition where one limb is shorter or longer than the other due to factors that are not congenital but rather developed over time. This condition can arise from various causes, including trauma, surgical interventions, infections, or diseases that affect bone growth or structure. For instance, a fracture that heals improperly may lead to a discrepancy in limb length. Additionally, conditions such as osteomyelitis or tumors can necessitate surgical procedures that may result in limb length inequality. Patients may experience functional limitations, gait abnormalities, and increased risk of joint problems due to the altered biomechanics. Treatment often involves corrective procedures such as limb lengthening or shortening surgeries, orthotic devices, and physical therapy to improve function and alleviate discomfort. Accurate coding of this condition is crucial for appropriate management and reimbursement, as it often requires multidisciplinary care involving orthopedic specialists, physical therapists, and rehabilitation professionals.
Detailed surgical notes, imaging reports, and follow-up assessments.
Post-fracture limb length discrepancy, post-surgical complications leading to unequal limb length.
Ensure clear documentation of the cause and treatment plan, including any corrective surgeries performed.
Therapy notes detailing functional assessments and treatment plans.
Rehabilitation following limb lengthening procedures or compensatory strategies for gait abnormalities.
Document the impact of unequal limb length on mobility and function to support therapy claims.
Used in cases of acquired limb length discrepancy requiring surgical intervention.
Surgical notes detailing the procedure and indication for surgery.
Orthopedic documentation must clearly outline the need for the procedure based on acquired conditions.
Common causes include trauma, surgical interventions, infections, and diseases affecting bone growth such as osteomyelitis or tumors.
