Alphabetic Index · main term

Phrenitis

FY2027Index: Pf–Ph /Alphabetic Index

Phrenitis is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). It is a cross-reference: the Index sends you to Encephalitis, which lists G04.90. Confirm the code in the Tabular List before you report it.

Where the Index sends you

see Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)

G04.90BillableExcludes1Excludes2

Encephalitis and encephalomyelitis, unspecified

Open G04.90

First-level subterms 65

acute see also Encephalitis, viralA86
arboviral, arbovirus NECA85.2
arthropod-borne NEC (viral)A85.2
AustralianA83.4
California (virus)A83.5
Central European (tick-borne)A84.1
CzechoslovakianA84.1
Dawson's (inclusion body)A81.1
diffuse sclerosingA81.1
disseminated, acuteG04.00

See all 140 subterms