How many two-digit numbers have non-zero digits whose sum is prime?

If I didn't miss any !!!!

11, 12, 14, 16

21 , 23 , 25, 29

32 , 34, 38

41, 43, 47 , 49

52, 56, 58

61, 65, 67

74, 76

83, 85, 89

92, 94, 98