ICD-10-CM > H60-H95 > H95-H95 > H95 > H95.1 > H95.12 H95.12 Granulation of postmastoidectomy cavity Non-Billable/Non-Specific Codes H95.121Granulation of postmastoidectomy cavity, right earH95.122Granulation of postmastoidectomy cavity, left earH95.123Granulation of postmastoidectomy cavity, bilateral earsH95.129Granulation of postmastoidectomy cavity, unspecified ear