Congenital lordosis, lumbosacral region

This code signifies an abnormal, exaggerated inward curvature of the spine in the lower back and sacral area that is present at birth. This congenital anomaly results in a prominent lumbar curve, often affecting posture and potentially leading to back pain or neurological symptoms.

Use this code for patients diagnosed with lordosis of the lumbosacral spine that is explicitly documented as congenital in origin. Documentation should clearly state the presence of this spinal deformity from birth or identify it as a developmental anomaly.

• Differentiate from acquired lordosis, which would be coded with a different category (e.g., M40.5-).
• Ensure the documentation specifies the lumbosacral region; other spinal regions have different codes.
• Look for terms like "congenital," "present at birth," or "developmental anomaly" to support this code.