The provider notes, "For the last three months I have been seeing this patient who has had recurring bouts of ear inflammation and infection. Examination of the left ear now shows stenosis of the external ear canal with no infection or inflammation at this time. However, the recurrent infections are the cause of the stenosis." The correct code(s) for this case is/are __________.
a) 381.01
b) 380.22
c) 383.81
d) 380.23