{"page":"https://casescribe.ai/explorer/secondary/to/knee","generated_at":"2026-10-03T18:29:57.108Z","data_as_of":{"decisions":944125,"first_year":2017,"last_year":2026,"latest_decision":"2026-04-30","cfr":"2026-10-01","m21":"2026-09-29"},"about":{"publisher":"CaseScribe AI (VA Law Explorer)","source":"Public Board of Veterans' Appeals decisions (appeals of VA decisions, not VA's first decisions), M21-1 Adjudication Procedures Manual, 38 CFR Parts 3 and 4.","method":"Outcomes are issue-level: each condition the Board decided in a decision counts once. Decision data is extracted by AI and can contain errors. Rates describe past appeals and do not predict any claim.","disclaimer":"For research only. CaseScribe AI is not a law firm and this is not legal advice. Verify figures against the source decisions and regulations.","attribution":"Cite as: VA Law Explorer, CaseScribe AI, with the page URL."},"data":{"disability":"a knee condition","conditions_claimed_secondary_to_it":[{"claim":"Major depressive disorder secondary to a knee condition","decisions":512,"granted_pct":49.4,"page":"https://casescribe.ai/explorer/secondary/major-depressive-disorder-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/major-depressive-disorder-secondary-to-knee.json"},{"claim":"Sleep apnea secondary to a knee condition","decisions":983,"granted_pct":46.2,"page":"https://casescribe.ai/explorer/secondary/sleep-apnea-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/sleep-apnea-secondary-to-knee.json"},{"claim":"Osteoarthritis secondary to a knee condition","decisions":535,"granted_pct":34.2,"page":"https://casescribe.ai/explorer/secondary/osteoarthritis-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/osteoarthritis-secondary-to-knee.json"},{"claim":"Degenerative arthritis of the spine secondary to a knee condition","decisions":2449,"granted_pct":24.1,"page":"https://casescribe.ai/explorer/secondary/degenerative-arthritis-spine-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/degenerative-arthritis-spine-secondary-to-knee.json"},{"claim":"Intervertebral disc syndrome secondary to a knee condition","decisions":1760,"granted_pct":19.7,"page":"https://casescribe.ai/explorer/secondary/intervertebral-disc-syndrome-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/intervertebral-disc-syndrome-secondary-to-knee.json"},{"claim":"Hip impairment secondary to a knee condition","decisions":2665,"granted_pct":19,"page":"https://casescribe.ai/explorer/secondary/hip-impairment-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/hip-impairment-secondary-to-knee.json"},{"claim":"Ankle impairment secondary to a knee condition","decisions":952,"granted_pct":15.2,"page":"https://casescribe.ai/explorer/secondary/ankle-impairment-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/ankle-impairment-secondary-to-knee.json"},{"claim":"Shoulder impairment secondary to a knee condition","decisions":426,"granted_pct":15,"page":"https://casescribe.ai/explorer/secondary/shoulder-impairment-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/shoulder-impairment-secondary-to-knee.json"},{"claim":"Cervical spine limitation of motion secondary to a knee condition","decisions":396,"granted_pct":10.6,"page":"https://casescribe.ai/explorer/secondary/cervical-spine-limitation-of-motion-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/cervical-spine-limitation-of-motion-secondary-to-knee.json"},{"claim":"Thoracolumbar or lumbar spine limitation of motion secondary to a knee condition","decisions":636,"granted_pct":8.6,"page":"https://casescribe.ai/explorer/secondary/thoracolumbar-or-lumbar-spine-limitation-of-motion-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/thoracolumbar-or-lumbar-spine-limitation-of-motion-secondary-to-knee.json"},{"claim":"Foot impairment secondary to a knee condition","decisions":445,"granted_pct":8.3,"page":"https://casescribe.ai/explorer/secondary/foot-impairment-secondary-to-knee","json":"https://casescribe.ai/explorer/data/secondary/foot-impairment-secondary-to-knee.json"}],"it_claimed_secondary_to_other_conditions":[{"claim":"Knee conditions secondary to flat feet","decisions":738,"granted_pct":24.3,"page":"https://casescribe.ai/explorer/secondary/knee-impairment-secondary-to-flat-feet","json":"https://casescribe.ai/explorer/data/secondary/knee-impairment-secondary-to-flat-feet.json"},{"claim":"Knee conditions secondary to an ankle condition","decisions":1562,"granted_pct":18.2,"page":"https://casescribe.ai/explorer/secondary/knee-impairment-secondary-to-ankle","json":"https://casescribe.ai/explorer/data/secondary/knee-impairment-secondary-to-ankle.json"},{"claim":"Knee conditions secondary to a back condition","decisions":2083,"granted_pct":12.3,"page":"https://casescribe.ai/explorer/secondary/knee-impairment-secondary-to-back","json":"https://casescribe.ai/explorer/data/secondary/knee-impairment-secondary-to-back.json"}],"how_va_rates":null}}