Unequal limb length (acquired), unspecified site
ICD-10 M21.70 is a billable code used to indicate a diagnosis of unequal limb length (acquired), unspecified site.
Unequal limb length, or limb length discrepancy, refers to a condition where one limb is shorter or longer than the other due to acquired factors. This can result from various conditions such as trauma, surgical interventions, or diseases that affect bone growth or structure. Common causes include fractures that heal improperly, infections that affect bone integrity, or conditions like osteomyelitis. The condition can lead to functional impairments, gait abnormalities, and increased risk of osteoarthritis in the affected joints. 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 is essential for proper reimbursement and to reflect the complexity of the patient's condition and treatment plan.
Detailed history of the patient's condition, including any trauma or surgical history, and specific measurements of limb lengths.
Patients presenting with post-fracture limb length discrepancies or those requiring corrective surgery.
Ensure that all relevant imaging studies and assessments are documented to support the diagnosis.
Functional assessments, treatment plans, and progress notes detailing the impact of limb length discrepancy on mobility.
Patients undergoing rehabilitation post-surgery for limb length correction.
Documenting the patient's response to therapy and any modifications made to the treatment plan.
Used when a patient undergoes surgical correction for limb length discrepancy.
Surgical notes detailing the procedure and pre-operative assessments.
Orthopedic surgeons must document the rationale for surgery and expected outcomes.
Documentation must include a clear history of the acquired condition, specific measurements of limb lengths, and any associated treatment plans or procedures.
