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

Alphabetical Index

Use the alphabetical index for the main term hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) to review the available sub terms and properly select the ICD-10 code with the highest degree of specificity. Instructional notations will guide the coder with information such as "see", "see also", "with", "without", "due to", and "code by site".

  • Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) - G91.9 Hydrocephalus, unspecified
    • aqueduct Sylvius stricture - Q03.0 Malformations of aqueduct of Sylvius
    • causing disproportion - O33.6 Maternal care for disproportion due to hydrocephalic fetus
      • with obstructed labor - O66.3 Obstructed labor due to other abnormalities of fetus
    • communicating - G91.0 Communicating hydrocephalus
    • congenital (external) (internal) - Q03.9 Congenital hydrocephalus, unspecified
      • specified NEC - Q03.8 Other congenital hydrocephalus
      • with spina bifida - Q05.4 Unspecified spina bifida with hydrocephalus
        • cervical - Q05.0 Cervical spina bifida with hydrocephalus
        • dorsal - Q05.1 Thoracic spina bifida with hydrocephalus
        • lumbar - Q05.2 Lumbar spina bifida with hydrocephalus
        • lumbosacral - Q05.2 Lumbar spina bifida with hydrocephalus
        • sacral - Q05.3 Sacral spina bifida with hydrocephalus
        • thoracic - Q05.1 Thoracic spina bifida with hydrocephalus
        • thoracolumbar - Q05.1 Thoracic spina bifida with hydrocephalus
    • due to toxoplasmosis (congenital) - P37.1 Congenital toxoplasmosis
    • foramen Magendie block (acquired) - G91.1 Obstructive hydrocephalus
      • congenital - See Also: Hydrocephalus, congenital; - Q03.1 Atresia of foramina of Magendie and Luschka
    • in (due to)
      • infectious disease NEC - B89 Unspecified parasitic disease
      • neoplastic disease NEC (see also Neoplasm) - G91.4 Hydrocephalus in diseases classified elsewhere
      • parasitic disease - B89 Unspecified parasitic disease
    • newborn - Q03.9 Congenital hydrocephalus, unspecified
      • with spina bifida - See: Spina bifida, with hydrocephalus;
    • noncommunicating - G91.1 Obstructive hydrocephalus
    • normal pressure - G91.2 (Idiopathic) normal pressure hydrocephalus
      • secondary - G91.0 Communicating hydrocephalus
    • obstructive - G91.1 Obstructive hydrocephalus
    • otitic - G93.2 Benign intracranial hypertension
    • post-traumatic NEC - G91.3 Post-traumatic hydrocephalus, unspecified
    • secondary - G91.4 Hydrocephalus in diseases classified elsewhere
      • post-traumatic - G91.3 Post-traumatic hydrocephalus, unspecified
    • specified NEC - G91.8 Other hydrocephalus
    • syphilitic, congenital - A50.49 Other late congenital neurosyphilis

Clinical Terms

The following are some of the clinical term definitions related or applicable to hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) within the ICD-10 index for Diseases and Injuries.

Infant, Newborn: An infant during the first 28 days after birth.

Parasitic Diseases: Infections or infestations with PARASITES. They are often contracted through contact with an intermediate vector, but may occur as the result of direct exposure.