# Musculoskeletal Disorders Aggregated by Superinsight from public-domain sources, as of 2026-08-20. Domain: ssa. --- ## Listing 1.15 — Disorders of the skeletal spine resulting in compromise of a nerve root(s) {#1.15} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.15* Official source: 1.15 Disorders of the skeletal spine resulting in compromise of a nerve root(s) (see 1.00F), documented by A, B, C, and D: A. Neuro-anatomic (radicular) distribution of one or more of the following symptoms consistent with compromise of the affected nerve root(s): 1. Pain; or 2. Paresthesia; or 3. Muscle fatigue. AND B. Radicular distribution of neurological signs present during physical examination (see 1.00C2) or on a diagnostic test (see 1.00C3) and evidenced by 1, 2, and either 3 or 4: 1. Muscle weakness; and 2. Sign(s) of nerve root irritation, tension, or compression, consistent with compromise of the affected nerve root (see 1.00F2); and 3. Sensory changes evidenced by: a. Decreased sensation; or b. Sensory nerve deficit (abnormal sensory nerve latency) on electrodiagnostic testing; or 4. Decreased deep tendon reflexes. AND C. Findings on imaging (see 1.00C3) consistent with compromise of a nerve root(s) in the cervical or lumbosacral spine. AND 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)); or 3. An inability to use both upper extremities to the extent that neither can be used to independently initiate, sustain, and complete work-related activities involving fine and gross movements (see 1.00E4). --- ## Listing 1.16 — Lumbar spinal stenosis resulting in compromise of the cauda equina {#1.16} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.16* Official source: 1.16 Lumbar spinal stenosis resulting in compromise of the cauda equina (see 1.00G), documented by A, B, C, and D: 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 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 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 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)). --- ## Listing 1.17 — Reconstructive surgery or surgical arthrodesis of a major weight-bearing joint {#1.17} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.17* Official source: 1.17 Reconstructive surgery or surgical arthrodesis of a major weight-bearing joint (see 1.00H), documented by A, B, and C: A. History of reconstructive surgery or surgical arthrodesis of a major weight-bearing joint. AND B. 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 C. 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)). --- ## Listing 1.18 — Abnormality of a major joint(s) in any extremity {#1.18} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.18* Official source: 1.18 Abnormality of a major joint(s) in any extremity (see 1.00I), documented by A, B, C, and D: A. Chronic joint pain or stiffness. AND B. Abnormal motion, instability, or immobility of the affected joint(s). AND C. Anatomical abnormality of the affected joint(s) noted on: 1. Physical examination (for example, subluxation, contracture, or bony or fibrous ankylosis); or 2. Imaging (for example, joint space narrowing, bony destruction, or ankylosis or arthrodesis of the affected joint). AND 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)); or 3. An inability to use both upper extremities to the extent that neither can be used to independently initiate, sustain, and complete work-related activities involving fine and gross movements (see 1.00E4). --- ## Listing 1.19 — Pathologic fractures due to any cause {#1.19} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.19* Official source: 1.19 Pathologic fractures due to any cause (see 1.00J), documented by A and B: A. Pathologic fractures occurring on three separate occasions within a 12-month period. AND B. 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)); or 3. An inability to use both upper extremities to the extent that neither can be used to independently initiate, sustain, and complete work-related activities involving fine and gross movements (see 1.00E4). --- ## Listing 1.20 — Amputation due to any cause {#1.20} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.20* Official source: 1.20 Amputation due to any cause (see 1.00K), documented by A, B, C, or D: A. Amputation of both upper extremities, occurring at any level at or above the wrists (carpal joints), up to and including the shoulder (glenohumeral) joint. OR B. Hemipelvectomy or hip disarticulation. OR C. Amputation of one upper extremity, occurring at any level at or above the wrist (carpal joints), and amputation of one lower extremity, occurring at or above the ankle (talocrural joint), 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. A documented medical need (see 1.00C6a) for a one-handed, hand-held assistive device (see 1.00C6d) requiring the use of the other upper extremity or a wheeled and seated mobility device involving the use of one hand (see 1.00C6e(ii)); or 3. The inability to use the remaining upper extremity to independently initiate, sustain, and complete work-related activities involving fine and gross movements (1.00E4). OR D. Amputation of one or both lower extremities, occurring at or above the ankle (talocrural joint), with complications of the residual limb(s) that have lasted, or are expected to last, for a continuous period of at least 12 months, and medical documentation of 1 and 2: 1. The inability to use a prosthesis(es); and 2. 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)). --- ## Listing 1.21 — Soft tissue injury or abnormality under continuing surgical management {#1.21} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.21* Official source: 1.21 Soft tissue injury or abnormality under continuing surgical management (see 1.00L), documented by A, B, and C: A. Evidence confirms continuing surgical management (see 1.00O1) directed toward saving, reconstructing, or replacing the affected part of the body. AND B. The surgical management has been, or is expected to be, ongoing for a continuous period of at least 12 months. AND C. Maximum benefit from therapy (see 1.00O2) has not yet been achieved. --- ## Listing 1.22 — Non-healing or complex fracture of the femur, tibia, pelvis, or one or more of the talocrural bones {#1.22} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.22* Official source: 1.22 Non-healing or complex fracture of the femur, tibia, pelvis, or one or more of the talocrural bones (see 1.00M), documented by A, B, and C: A. Solid union not evident on imaging (see 1.00C3) and not clinically solid. AND B. 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 C. 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)). --- ## Listing 1.23 — Non-healing or complex fracture of an upper extremity {#1.23} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 1.23* Official source: 1.23 Non-healing or complex fracture of an upper extremity (see 1.00N), documented by A and B: A. Nonunion or complex fracture of the shaft of the humerus, radius, or ulna, under continuing surgical management (see 1.00O1) directed toward restoration of functional use of the extremity. AND B. Medical documentation of an inability to independently initiate, sustain, and complete work-related activities involving fine and gross movements (see 1.00E4) that has lasted, or is expected to last, for a continuous period of at least 12 months.