Good luck finding a pattern for the multiples of 9 where it works. Cases where it works/doesn't:

1-10: yes
11: no (9 + 9 = 18 = even, 99 = odd)
12-20: yes
21: no
22-30: yes
31: no

...

101: no
102: yes
103: no
104: yes
105: no
106: yes
107: no
108: yes
109: no
110: yes
111: yes
112 - 120: yes
121: no

...

201: no
202: yes
203: no
204: yes
205: no
206: yes
207: no
208: yes
209: no
210: yes
211: no
212: yes
213: no