Congenital lordosis, lumbar region

This code signifies an abnormal, exaggerated inward curvature of the lower spine (lordosis) that is present at birth. This congenital anomaly specifically affects the lumbar region, leading to a prominent swayback appearance. It is a structural defect rather than a postural issue.

Use this code when documentation clearly indicates a diagnosis of lordosis in the lumbar spine that is explicitly stated as congenital in origin. This typically applies to pediatric patients or adults whose medical history confirms the condition's presence since birth. Supporting documentation would include physician notes detailing the congenital nature, imaging reports (X-rays, MRI) confirming lumbar hyperlordosis, and possibly genetic testing results if applicable.

• Differentiate from acquired lordosis (M40.5x) which develops later in life; the congenital aspect is key.
• Ensure the documentation specifies the lumbar region; other spinal regions have different codes.
• Do not use for normal physiological lumbar lordosis; this code is for a pathological, congenital exaggeration.