Alphabetic Index · main term

Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent)

FY2027Index: Hy /Alphabetic Index

At the main termG91.9

Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). The Index lists G91.9 for the term on its own. It has 33 subterms and 32 code entries. First-level subterms include aqueduct Sylvius stricture, causing disproportion, communicating, congenital, due to toxoplasmosis, foramen Magendie block, in, newborn and more. Confirm any code you find here in the Tabular List before you report it.

Subterms 33

aqueduct Sylvius strictureQ03.0
causing disproportionO33.6
- with obstructed laborO66.3
communicatingG91.0
congenital (external) (internal)Q03.9
- with spina bifidaQ05.4
  - cervicalQ05.0
  - dorsalQ05.1
  - lumbarQ05.2
  - lumbosacralQ05.2
  - sacralQ05.3
  - thoracicQ05.1
  - thoracolumbarQ05.1
- specified NECQ03.8
due to toxoplasmosis (congenital)P37.1
foramen Magendie block (acquired)G91.1
- congenital see also Hydrocephalus, congenitalQ03.1
in (due to)
- infectious disease NECB89[G91.4]
- neoplastic disease NEC (see also Neoplasm)G91.4
- parasitic diseaseB89[G91.4]
newbornQ03.9
- with spina bifida see Spina bifida, with hydrocephalus
noncommunicatingG91.1
normal pressureG91.2
- secondaryG91.0
obstructiveG91.1
otiticG93.2
post-traumatic NECG91.3
secondaryG91.4
- post-traumaticG91.3
specified NECG91.8
syphilitic, congenitalA50.49