H95.1 - Other disorders of ear and mastoid process following mastoidectomy
H95.11 - Chronic inflammation of postmastoidectomy cavity
H95.111 - Chronic inflammation of postmastoidectomy cavity, right ear
H95.112 - Chronic inflammation of postmastoidectomy cavity, left ear
H95.113 - Chronic inflammation of postmastoidectomy cavity, bilateral ears
H95.119 - Chronic inflammation of postmastoidectomy cavity, unspecified ear