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M51.A4

Billable

Intervertebral annulus fibrosus defect, small, lumbosacral region

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

What This Code Means

A small tear or defect in the outer fibrous ring of a spinal disc at the junction between the lower back and sacrum.

Coding Tips

  • •Verify documentation specifies both 'small' size and 'lumbosacral' location
  • •This is a more specific code than M51.A3 and should be used when size is documented

Code First

  • , if applicable, lumbosacral disc herniation (M51.17, M51.27)

Code Hierarchy

└M51Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders└M51.AOther lumbar and lumbosacral annulus fibrosus disc defects└M51.A4Intervertebral annulus fibrosus defect, small, lumbosacral region
└M51.A4Intervertebral annulus fibrosus defect, small, lumbosacral region

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