ICD-10-CM > H60-H95 > H65-H75 > H70 H70 Mastoiditis and related conditions Non-Billable/Non-Specific Codes H70.0Acute mastoiditisH70.00Acute mastoiditis without complicationsH70.001Acute mastoiditis without complications, right earH70.002Acute mastoiditis without complications, left earH70.003Acute mastoiditis without complications, bilateralH70.009Acute mastoiditis without complications, unspecified earH70.01Subperiosteal abscess of mastoidH70.011Subperiosteal abscess of mastoid, right earH70.012Subperiosteal abscess of mastoid, left earH70.013Subperiosteal abscess of mastoid, bilateralH70.019Subperiosteal abscess of mastoid, unspecified earH70.09Acute mastoiditis with other complicationsH70.091Acute mastoiditis with other complications, right earH70.092Acute mastoiditis with other complications, left earH70.093Acute mastoiditis with other complications, bilateralH70.099Acute mastoiditis with other complications, unspecified earH70.1Chronic mastoiditisH70.10Chronic mastoiditis, unspecified earH70.11Chronic mastoiditis, right earH70.12Chronic mastoiditis, left earH70.13Chronic mastoiditis, bilateralH70.2PetrositisH70.20Unspecified petrositisH70.201Unspecified petrositis, right earH70.202Unspecified petrositis, left earH70.203Unspecified petrositis, bilateralH70.209Unspecified petrositis, unspecified earH70.21Acute petrositisH70.211Acute petrositis, right earH70.212Acute petrositis, left earH70.213Acute petrositis, bilateralH70.219Acute petrositis, unspecified earH70.22Chronic petrositisH70.221Chronic petrositis, right earH70.222Chronic petrositis, left earH70.223Chronic petrositis, bilateralH70.229Chronic petrositis, unspecified earH70.8Other mastoiditis and related conditionsH70.81Postauricular fistulaH70.811Postauricular fistula, right earH70.812Postauricular fistula, left earH70.813Postauricular fistula, bilateralH70.819Postauricular fistula, unspecified earH70.89Other mastoiditis and related conditionsH70.891Other mastoiditis and related conditions, right earH70.892Other mastoiditis and related conditions, left earH70.893Other mastoiditis and related conditions, bilateralH70.899Other mastoiditis and related conditions, unspecified earH70.9Unspecified mastoiditisH70.90Unspecified mastoiditis, unspecified earH70.91Unspecified mastoiditis, right earH70.92Unspecified mastoiditis, left earH70.93Unspecified mastoiditis, bilateral
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