Piriformis Syndrome

DC 5021Musculoskeletal38 CFR 4.71a, DC 5021

Compression of the sciatic nerve by the piriformis muscle in the buttock, causing pain, tingling, and numbness in the buttock and down the leg. The VA rates piriformis syndrome by analogy to myositis, based on functional limitation.

Rating Levels

You have piriformis syndrome with neurological symptoms including numbness, tingling, or weakness in the leg from sciatic nerve compression. Consider whether a separate rating for sciatic nerve involvement under DC 8520 may yield a higher combined rating.

What the VA looks for

Numbness, tingling, or weakness in the affected leg
EMG/nerve conduction study showing sciatic nerve involvement
Marked limitation of hip motion with neurological findings
MRI of the pelvis showing piriformis muscle abnormality
Documentation of radiating symptoms below the knee

Common Pitfalls

⚠Being misdiagnosed as lumbar radiculopathy — piriformis syndrome originates in the buttock, not the spine, and treatment differs significantly.
⚠Not getting an EMG/nerve conduction study to differentiate piriformis syndrome from lumbar radiculopathy and to document nerve involvement.
⚠Not documenting pain with prolonged sitting — this is especially important for veterans who were military vehicle operators, pilots, or had desk-intensive MOS.
⚠Not considering a separate rating for sciatic nerve involvement under DC 8520, which may be combined with the musculoskeletal rating for a higher overall rating.

Related DBQ Forms

DBQ Hip and Thigh Conditions

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Condition Rating Guides

Understand what the VA looks for at each rating level — loading conditions…

Rating Levels

What the VA looks for

Numbness, tingling, or weakness in the affected leg
EMG/nerve conduction study showing sciatic nerve involvement
Marked limitation of hip motion with neurological findings
MRI of the pelvis showing piriformis muscle abnormality
Documentation of radiating symptoms below the knee

Common Pitfalls

⚠Being misdiagnosed as lumbar radiculopathy — piriformis syndrome originates in the buttock, not the spine, and treatment differs significantly.

⚠Not getting an EMG/nerve conduction study to differentiate piriformis syndrome from lumbar radiculopathy and to document nerve involvement.

⚠Not documenting pain with prolonged sitting — this is especially important for veterans who were military vehicle operators, pilots, or had desk-intensive MOS.

⚠Not considering a separate rating for sciatic nerve involvement under DC 8520, which may be combined with the musculoskeletal rating for a higher overall rating.