1	M17.0	Primary gonarthrosis, bilateral	0
2	M17.1	Other primary gonarthrosis	0
3	M17.2	Post-traumatic gonarthrosis, bilateral	0
4	M17.3	Other post-traumatic gonarthrosis	0
5	M17.4	Other secondary gonarthrosis, bilateral	0
6	M17.5	Other secondary gonarthrosis	0
7	M17.9	Gonarthrosis, unspecified	0