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.

How the VA rates this condition

The VA rates this condition based on how much it affects your ability to work and carry out daily activities. The examiner will focus on the functional limitations your condition causes, not just the diagnosis itself.

Diagnostic code

DC 5021

Rating range

10% – 30%

Rating levels

Rating criteria are defined in 38 CFR 4.71a, DC 5021. This guide presents a plain-language summary and is not a substitute for the full regulatory text. Always consult a VSO or VA-accredited attorney for case-specific advice.

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

View evidence checklist →See secondary conditions →

Related Conditions

Conditions commonly associated with Piriformis Syndrome or rated under the same body system.

Lumbar Strain (Low Back Pain)

DC 5237·Musculoskeletal

Cervical Strain (Neck Pain)

DC 5237·Musculoskeletal

Knee Limitation of Flexion

DC 5260·Musculoskeletal

Knee Limitation of Extension

DC 5261·Musculoskeletal

Knee Instability (Subluxation)

DC 5257·Musculoskeletal

Plantar Fasciitis (Foot Pain)

DC 5276·Musculoskeletal

Degenerative Arthritis (Osteoarthritis)

DC 5003·Musculoskeletal

Fibromyalgia

DC 5025·Musculoskeletal

Condition Rating Guides

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

How the VA rates this condition

Diagnostic code

DC 5021

Rating range

10% – 30%

Rating levels

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.