Infectious mononucleosis, unspecified

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:

B27.90 Infectious mononucleosis, unspecified without complication
B27.91 Infectious mononucleosis, unspecified with polyneuropathy
B27.92 Infectious mononucleosis, unspecified with meningitis
B27.99 Infectious mononucleosis, unspecified with other complication

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 Infectious mononucleosis, unspecified

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from B27 Infectious mononucleosis

Includes

glandular fever
monocytic angina
Pfeiffer's disease

Codes in the same group

Code	Description	Status
B27.0	Gammaherpesviral mononucleosis	Not billable
B27.1	Cytomegaloviral mononucleosis	Not billable
B27.8	Other infectious mononucleosis	Not billable