Muscle wasting and atrophy, NEC, back, lumbosacral

This code signifies a reduction in muscle mass and strength in the lumbosacral region of the back, not due to a specified neurological disease or direct injury. It indicates a generalized or localized muscle degeneration in this area, often leading to weakness and functional impairment.

Apply this code when documentation specifies muscle atrophy or wasting affecting the lower back and sacrum, without an underlying neurological condition like poliomyelitis or muscular dystrophy. This code is appropriate for conditions such as disuse atrophy, sarcopenia primarily affecting the lumbosacral muscles, or idiopathic muscle loss in this area.

• Ensure documentation clearly specifies the lumbosacral region as the affected site of muscle wasting.
• Always look for an underlying cause; if a specific neurological condition is identified, a more specific code from G70-G73 or G80-G83 should be used.
• Do not use this code if the muscle wasting is directly attributable to a traumatic injury; instead, use an appropriate S code.