Subperiosteal abscess of mastoid

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

H70.011 Subperiosteal abscess of mastoid, right ear
H70.012 Subperiosteal abscess of mastoid, left ear
H70.013 Subperiosteal abscess of mastoid, bilateral
H70.019 Subperiosteal abscess of mastoid, unspecified ear

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2012 Added to the draft code set draft Subperiosteal abscess of mastoid

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Endomastoiditis
Bezold's abscess
Abscess > mastoid
Empyema > mastoid
Pyocele > mastoid
Abscess > Bezold's
Von Bezold's abscess
Abscess > von Bezold's
Abscess > bone > mastoid
Infection, infected, infective > mastoid
Mastoiditis > acute, subacute > subperiosteal

Codes in the same group

Code	Description	Status
H70.00	Acute mastoiditis without complications	Not billable
H70.09	Acute mastoiditis with other complications	Not billable