Valid for Submission
G91.0 is a billable diagnosis code used to specify a medical diagnosis of communicating hydrocephalus. The code G91.0 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code G91.0 might also be used to specify conditions or terms like communicating hydrocephalus, communicating hydrocephalus co-occurrent and due to congenital agenesis of arachnoid villi, ex-vacuo hydrocephalus due to infection, hydrocephalus due to cerebrospinal fluid absorption defect, hydrocephalus due to cerebrospinal fluid overproduction , hydrocephalus ex vacuo, etc.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G91.0:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Secondary normal pressure hydrocephalus
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G91.0 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Communicating hydrocephalus
- Communicating hydrocephalus co-occurrent and due to congenital agenesis of arachnoid villi
- Ex-vacuo hydrocephalus due to infection
- Hydrocephalus due to cerebrospinal fluid absorption defect
- Hydrocephalus due to cerebrospinal fluid overproduction
- Hydrocephalus ex vacuo
- Infantile posthemorrhagic hydrocephalus
- Intermittently raised pressure hydrocephalus
- Non-obstructive hydrocephalus
- Posthemorrhagic hydrocephalus
- Postoperative communicating hydrocephalus
- Post-traumatic communicating hydrocephalus
- Post-traumatic hydrocephalus
- Progressive post hemorrhagic ventricular dilatation
- HYDROCEPHALUS-. excessive accumulation of cerebrospinal fluid within the cranium which may be associated with dilation of cerebral ventricles intracranial hypertension; headache; lethargy; urinary incontinence; and ataxia.
Convert G91.0 to ICD-9 Code
Information for Patients
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
- 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
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