Influenza due to unidentified influenza virus with encephalopathy

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2011 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.

FY2011 Added to the draft code set draft Influenza due to unidentified influenza virus with encephalopathy

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 the J09-J18 section Influenza and pneumonia (J09-J18)

Excludes2 - not included here

allergic or eosinophilic pneumonia (J82)
aspiration pneumonia NOS (J69.0)
meconium pneumonia (P24.01)
neonatal aspiration pneumonia (P24.-)
pneumonia due to solids and liquids (J69.-)
congenital pneumonia (P23.9)
lipid pneumonia (J69.1)
rheumatic pneumonia (I00)
ventilator associated pneumonia (J95.851)

Use additional code

code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)

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.

Flu
Myelitis
Meningism
Phrenitis
Cephalitis
Cerebritis
Influenzal
Cerebellitis
Fever > brain
Ventriculitis
Grippe, grippal
Mesencephalitis
Parencephalitis
Syringomyelitis
Fever > cerebral
Radiculomyelitis
Encephalomyelitis
Gastroenteropathy
Myeloencephalitis
Leukoencephalopathy
Meningoencephalitis
Influenza-like disease
Meningismus > influenzal
Myelopathy > in > infection
Gastroenteritis > influenzal
Encephalitis > in > influenza
Polioencephalitis > influenzal
Encephalopathy > in > influenza
Irritation > meninges > nontraumatic
Infection, infected, infective > brain
Disease, diseased > brain > inflammatory
Inflammation, inflamed, inflammatory > brain
Inflammation, inflamed, inflammatory > cerebral
Inflammation, inflamed, inflammatory > spinal > cord
Influenza > with > encephalopathy

Codes in the same group

Code	Description	Status
J11.82	Influenza due to unidentified influenza virus with myocarditis	Valid
J11.83	Influenza due to unidentified influenza virus with otitis media	Valid
J11.89	Influenza due to unidentified influenza virus with other manifestations	Valid