M40.04
ICD-10-CMThis code identifies an exaggerated, forward curvature of the upper spine (thoracic region) that is primarily due to poor posture rather than a structural vertebral abnormality. It describes a flexible deformity that can often be corrected voluntarily, distinguishing it from fixed kyphotic deformities.
Use this code when documentation clearly indicates a diagnosis of kyphosis in the thoracic spine attributed to postural factors. This diagnosis is typically supported by physical examination findings showing a reducible kyphosis, often without significant vertebral wedging or other structural changes on imaging.
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