Unequal limb length (acquired), ulna and radius
ICD-10 M21.73 is a billable code used to indicate a diagnosis of unequal limb length (acquired), ulna and radius.
Unequal limb length (acquired) involving the ulna and radius refers to a condition where one forearm is shorter than the other due to various factors such as trauma, surgical intervention, or disease processes. This acquired deformity can result from conditions like osteomyelitis, fractures that heal improperly, or surgical resections. Patients may present with functional limitations, altered biomechanics, and compensatory postures that can lead to secondary musculoskeletal issues. The condition can affect daily activities and quality of life, necessitating a multidisciplinary approach for management, including physical therapy, orthotic devices, or surgical correction. Corrective procedures may involve lengthening techniques or osteotomies to restore limb symmetry and function. Accurate coding requires thorough documentation of the underlying cause and any associated conditions.
Detailed clinical notes on the patient's history, physical examination findings, and imaging results.
Post-traumatic limb length discrepancies, post-surgical complications leading to unequal limb lengths.
Ensure that the cause of the acquired condition is clearly documented to support the use of M21.73.
Progress notes detailing functional assessments and treatment plans.
Rehabilitation following corrective surgery for limb length discrepancies.
Document functional limitations and progress towards goals to support the need for therapy.
Used in surgical correction of acquired limb length discrepancies.
Surgical notes detailing the procedure and indications for surgery.
Orthopedic surgeons must document the rationale for surgical intervention.
Documentation should include the patient's history, physical examination findings, imaging results, and a clear statement of the acquired nature of the limb length discrepancy.