ICD-10-CM > H60-H95 > H65-H75 > H70 > H70.2 > H70.20 H70.20 Unspecified petrositis Non-Billable/Non-Specific Codes H70.201Unspecified petrositis, right earH70.202Unspecified petrositis, left earH70.203Unspecified petrositis, bilateralH70.209Unspecified petrositis, unspecified ear