Listing code
1.16
Adult (Part A)
Body system
1.00
Musculoskeletal disorders
Subsections
4
Lettered criteria paths
Step in evaluation
3 of 5
Listing match approves the claim
SSA listing text and criteria
Lumbar spinal stenosis resulting in compromise of the cauda equina (see 1.00G ), documented by A, B, C, and D:
Subsection A
Symptom(s) of neurological compromise manifested as: 1. Nonradicular distribution of pain in one or both lower extremities; or 2. Nonradicular distribution of sensory loss in one or both lower extremities; or 3. Neurogenic claudication. AND
- Nonradicular distribution of pain in one or both lower extremities; or
- Nonradicular distribution of sensory loss in one or both lower extremities; or
- Neurogenic claudication. AND
Subsection B
Nonradicular neurological signs present during physical examination (see 1.00C2 ) or on a diagnostic test (see 1.00C3 ) and evidenced by 1 and either 2 or 3: 1. Muscle weakness. 2. Sensory changes evidenced by: a. Decreased sensation; or b. Sensory nerve deficit (abnormal sensory nerve latency) on electrodiagnostic testing; or c. Areflexia, trophic ulceration, or bladder or bowel incontinence. 3. Decreased deep tendon reflexes in one or both lower extremities. AND
- Muscle weakness.
- Sensory changes evidenced by:
- Decreased deep tendon reflexes in one or both lower extremities. AND
Subsection C
Findings on imaging (see 1.00C3 ) or in an operative report (see 1.00C4 ) consistent with compromise of the cauda equina with lumbar spinal stenosis. AND
Subsection D
Impairment-related physical limitation of musculoskeletal functioning that has lasted, or is expected to last, for a continuous period of at least 12 months, and medical documentation of at least one of the following: 1. A documented medical need (see 1.00C6a ) for a walker, bilateral canes, or bilateral crutches (see 1.00C6d ) or a wheeled and seated mobility device involving the use of both hands (see 1.00C6e(i) ); or 2. An inability to use one upper extremity to independently initiate, sustain, and complete work-related activities involving fine and gross movements (see 1.00E4 ), and a documented medical need (see 1.00C6a ) for a one-handed, hand-held assistive device (see 1.00C6d ) that requires the use of the other upper extremity or a wheeled and seated mobility device involving the use of one hand (see 1.00C6e(ii) ).
- A documented medical need (see 1.00C6a ) for a walker, bilateral canes, or bilateral crutches (see 1.00C6d ) or a wheeled and seated mobility device involving the use of both hands (see 1.00C6e(i) ); or
- An inability to use one upper extremity to independently initiate, sustain, and complete work-related activities involving fine and gross movements (see 1.00E4 ), and a documented medical need (see 1.00C6a ) for a one-handed, hand-held assistive device (see 1.00C6d ) that requires the use of the other upper extremity or a wheeled and seated mobility device involving the use of one hand (see 1.00C6e(ii) ).
Source: SSA Blue Book listing 1.16. Last synced 2026-05-04.
Where claims under 1.16 usually fail
A common miss is having only imaging evidence of lumbar stenosis without the required cauda equina compromise documentation in Subsection C. Another is confusing radicular symptoms (pain or sensory loss following a nerve root distribution) with the listing's required nonradicular distribution under Subsection A. A third failure mode is having neurological symptoms but not the required nonradicular neurological signs in Subsection B, such as decreased deep tendon reflexes plus the specified sensory changes pattern. A fourth is meeting the medical findings but not meeting the 12-month duration/expected duration requirement in Subsection D, or not having the specific assistive device documentation described there.
Medical evidence that strengthens this claim
Strong documentation matches Subsections A through D. For Subsection A, medical records should document neurological compromise symptoms like nonradicular lower-extremity pain, nonradicular sensory loss, or neurogenic claudication. For Subsection B, records should include nonradicular neurological signs on exam or diagnostic tests showing muscle weakness, decreased deep tendon reflexes in one or both lower extremities, and the required sensory changes (decreased sensation, abnormal sensory nerve latency on electrodiagnostic testing indicating a sensory nerve deficit, or areflexia/trophic ulceration/bladder or bowel incontinence). For Subsection C, the file should include imaging findings or an operative report that is consistent with cauda equina compromise with lumbar spinal stenosis. For Subsection D, the medical evidence should document a continuous impairment-related physical limitation lasting (or expected to last) at least 12 months and document at least one of the specified assistive-device needs, including a walker, bilateral canes, bilateral crutches, or a wheeled and seated
What happens if your records do not meet this listing
If code 1.16 is not met, SSA generally moves to a different way of deciding disability based on what can still be done despite the condition. That usually means assessing residual functional capacity (RFC), which looks at the practical effects of the limitations from the whole medical picture, not just one listing section. If the case reaches the medical-vocational step, the decision also considers factors like age, education, and work history, and the RFC limits can be decisive even when a specific listing is not met.
Work activity and the SGA gate for this condition
For an SSDI claim, work activity above the substantial gainful activity (SGA) level can prevent benefits during the period of work, even if symptoms are serious. For a condition evaluated under code 1.16, the listing criteria include neurological compromise symptoms (Subsection A), exam or test findings such as muscle weakness and decreased deep tendon reflexes plus required sensory changes (Subsection B), imaging or operative findings consistent with cauda equina compromise (Subsection C), and an impairment-related physical limitation lasting at least 12 months with documented assistive-device needs or upper-extremity limitations (Subsection D). After an approval, disability is reviewed over time, and eligibility continues based on the continuing impact of the impairment.
Listing 1.16 FAQ
Questions that come up repeatedly for lumbar spinal stenosis resulting in compromise of the cauda equina disability claims.