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M40.36

Billable

Flatback syndrome, lumbar region

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Flatback syndrome affecting the lower back (lumbar region), a condition where the normal inward curve of the lower spine is reduced or absent.

Coding Tips

  • •Flatback syndrome is often a result of previous spinal surgery or degenerative disc disease; review clinical notes for underlying cause
  • •Ensure the lumbar region specification is clearly documented to distinguish from other spinal regions

Code Hierarchy

└M40Kyphosis and lordosis└M40.3Flatback syndrome└M40.36Flatback syndrome, lumbar region
└M40.36Flatback syndrome, lumbar region

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