M40.40
ICD-10-CMThis diagnosis code indicates an abnormal, exaggerated inward curvature of the spine, specifically in the lumbar region, without specifying the exact vertebral level or region affected. It represents a postural deformity where the natural lumbar lordosis is increased, often leading to a swayback appearance. This condition is typically acquired rather than congenital.
Use this code when documentation clearly states "postural lordosis" but does not specify the cervical, thoracic, or lumbar region. It is appropriate when the physician identifies an increased lumbar curve due to poor posture, muscle imbalance, or other non-structural causes, and no specific spinal segment is documented. Supporting documentation would include physical exam findings noting increased lumbar lordosis.
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