Relevant laws and regulations:
Appraisal of labor ability Injury and Occupational Disease Disability Grade GB/T16180-2014
5. 10.2 Ten-level clause series
Anyone who meets 5. 10. 1 or one of the following clauses is rated as a work-related injury level 10.
5) The distal interphalangeal joint of any finger except the thumb is severed or loses its function;