ICD-10 Diagnosis Code Q07.02

Arnold-Chiari syndrome with hydrocephalus

Diagnosis Code Q07.02

ICD-10: Q07.02
Short Description: Arnold-Chiari syndrome with hydrocephalus
Long Description: Arnold-Chiari syndrome with hydrocephalus
This is the 2017 version of the ICD-10-CM diagnosis code Q07.02

Code Classification
  • Congenital malformations, deformations and chromosomal abnormalities
    • Congenital malformations of the nervous system (Q00-Q07)
      • Other congenital malformations of nervous system (Q07)

Information for Patients

Chiari Malformation

Also called: Arnold-Chiari Malformation

Chiari malformations (CMs) are structural defects in the cerebellum. The cerebellum is the part of the brain that controls balance. With CM, brain tissue extends into the spinal canal. It can happen when part of the skull is too small, which pushes the brain tissue down. There are several types of CM. One type often happens in children who have neural tube defects. Some types cause no symptoms and don't need treatment. If you have symptoms, they may include

  • Neck pain
  • Balance problems
  • Numbness or other abnormal feelings in the arms or legs
  • Dizziness
  • Vision problems
  • Difficulty swallowing
  • Poor hand coordination

Doctors diagnose CM using imaging tests. Medicines may ease some symptoms, such as pain. Surgery is the only treatment available to correct or stop the progression of nerve damage.

NIH: National Institute of Neurological Disorders and Stroke

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Also called: Water on the brain

Hydrocephalus is the buildup of too much cerebrospinal fluid in the brain. Normally, this fluid cushions your brain. When you have too much, though, it puts harmful pressure on your brain.

Hydrocephalus can be congenital, or present at birth. Causes include genetic problems and problems with how the fetus develops. An unusually large head is the main sign of congenital hydrocephalus.

Hydrocephalus can also happen after birth. This is called acquired hydrocephalus. It can occur at any age. Causes can include head injuries, strokes, infections, tumors, and bleeding in the brain. Symptoms include

  • Headache
  • Vomiting and nausea
  • Blurry vision
  • Balance problems
  • Bladder control problems
  • Thinking and memory problems

Hydrocephalus can permanently damage the brain, causing problems with physical and mental development. If untreated, it is usually fatal. With treatment, many people lead normal lives with few limitations. Treatment usually involves surgery to insert a shunt. A shunt is a flexible but sturdy plastic tube. The shunt moves the cerebrospinal fluid to another area of the body where it can be absorbed. Medicine and rehabilitation therapy can also help.

NIH: National Institute of Neurological Disorders and Stroke

  • Brain surgery
  • Hydrocephalus
  • Normal pressure hydrocephalus (NPH)
  • Ventriculoperitoneal shunt
  • Ventriculoperitoneal shunt - discharge

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