CompFox AI Summary
The Appeals Board affirmed the WCJ's decision, holding that under Labor Code section 4663 as amended by SB 899, apportionment of permanent disability is based on causation and may include pre-existing, non-industrial conditions like degenerative arthritis, provided there is substantial medical evidence to support the percentage of non-industrial causation.
Full Decision Text1 Pages
The Appeals Board affirmed the WCJ's decision, holding that under Labor Code section 4663 as amended by SB 899, apportionment of permanent disability is based on causation and may include pre-existing, non-industrial conditions like degenerative arthritis, provided there is substantial medical evidence to support the percentage of non-industrial causation.
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