2024 ICD-10-CM Diagnosis Code Q04.6
Congenital cerebral cysts
- ICD-10-CM Code:
- Q04.6
- ICD-10 Code for:
- Congenital cerebral cysts
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Chronic
- Code Navigator:
Q04.6 is a billable diagnosis code used to specify a medical diagnosis of congenital cerebral cysts. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Absent tibia, polydactyly, arachnoid cyst syndrome
- Arachnoid cyst
- Arachnoid cyst
- Bilateral congenital cataract of eyes
- Cerebellar ataxia, intellectual disability, oculomotor apraxia, cerebellar cysts syndrome
- Cerebral arachnoid cyst
- Choroid plexus cyst
- Colloid brain cyst
- Colloid cyst of third ventricle
- Congenital cerebral cyst
- Congenital choroid plexus cyst
- Congenital malformation of the meninges
- Congenital malformation of the meninges
- Congenital porencephalic cyst
- Congenital porencephaly
- Congenital porencephaly
- Congenital porencephaly
- Congenital pseudoporencephaly
- Multiple congenital cerebral cysts
- Partial agenesis of corpus callosum
- Partial corpus callosum agenesis, cerebellar vermis hypoplasia with posterior fossa cysts syndrome
- Persistent Blake's pouch cyst
- Porencephalic cyst
- Porencephaly, cerebellar hypoplasia, internal malformations syndrome
- Porencephaly, microcephaly, bilateral congenital cataract syndrome
- Posterior fossa arachnoid cyst
- Pseudoporencephaly
- Schizencephaly
- Single congenital cerebral cyst
Clinical Classification
Clinical Category is Nervous system congenital anomalies
- CCSR Category Code: MAL004
- Inpatient Default CCSR: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Clinical Information
Schizencephaly
cortical malformations characterized by grey matter-lined cleft or cyst that extends from the ependyma often to the pia mater outer surface. the grey matter that lines the cleft is often polymicrogyria. it is associated with developmental delay, motor disturbance and seizures.Schizencephaly
a rare developmental abnormality characterized by the presence of clefs in the cerebral hemispheres. the abnormality may involve one or both cerebral hemispheres. signs and symptoms include developmental delays, mental retardation, paralysis, presence of a small head, and seizures.Porencephalic Cyst
a congenital or acquired cystic cavity within the cerebral hemisphere.
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Inclusion Terms
Inclusion TermsThese 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.
- Porencephaly
- Schizencephaly
Type 1 Excludes
Type 1 ExcludesA type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- acquired porencephalic cyst G93.0
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Cyst (colloid) (mucous) (simple) (retention)
- - arachnoid, brain (acquired) - G93.0
- - congenital - Q04.6
- - brain (acquired) - G93.0
- - congenital - Q04.6
- - third ventricle (colloid), congenital - Q04.6
- - choroid plexus - G93.0
- - congenital - Q04.6
- - paraphysis, cerebri, congenital - Q04.6
- - porencephalic - Q04.6
- - arachnoid, brain (acquired) - G93.0
- - Degeneration, degenerative
- - brain (cortical) (progressive) - G31.9
- - cystic - G31.89
- - congenital - Q04.6
- - cystic - G31.89
- - brain (cortical) (progressive) - G31.9
- - Schizencephaly - Q04.6
Present on Admission (POA)
Q04.6 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.
CMS POA Indicator Options and Definitions
POA Indicator | Reason for Code | CMS will pay the CC/MCC DRG? |
---|---|---|
Y | Diagnosis was present at time of inpatient admission. | YES |
N | Diagnosis was not present at time of inpatient admission. | NO |
U | Documentation insufficient to determine if the condition was present at the time of inpatient admission. | NO |
W | Clinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission. | YES |
1 | Unreported/Not used - Exempt from POA reporting. | NO |
Convert Q04.6 to ICD-9-CM
- ICD-9-CM Code: 742.4 - Brain anomaly NEC
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.
Patient Education
Brain Diseases
Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body. Your nerves take in information from your senses and send it to the brain to be processed. Your brain and nerves also communicate to help you move and to control your body's functions.
When the brain is healthy, it works quickly and automatically. But when you have a brain disease, it may affect how well you can function and do your daily activities. Some common brain diseases include:
- Brain tumors, which can press on nerves and affect brain function.
- Degenerative nerve diseases, which can affect many of your body's activities, such as balance, movement, talking, breathing, and heart function. Types include Alzheimer's disease and Parkinson's disease.
- Encephalitis (inflammation in the brain), which can lead to problems such as vision loss, weakness, and paralysis.
- Genetic brain disorders, which are caused by changes in genes (also called variants or mutations). These disorders can affect the development and function of the brain.
- Strokes, which can cause a loss of brain cells and can affect your ability to think clearly.
- Traumatic brain injuries (TBIs), which can affect brain function. They may range from mild to severe. The effects of a TBI may be temporary or permanent.
The symptoms of brain diseases vary widely, depending on the specific problem. In some cases, damage is permanent. In other cases, treatments such as surgery, medicines, or therapies such as physical, occupational, and speech therapies, may cure the disease or improve the symptoms.
[Learn More in MedlinePlus]
Familial porencephaly
Familial porencephaly is part of a group of conditions called the COL4A1-related disorders. The conditions in this group have a range of signs and symptoms that involve fragile blood vessels. In familial porencephaly, fluid-filled cysts develop in the brain (porencephaly) during fetal development or soon after birth. These cysts typically occur in only one side of the brain and vary in size. The cysts are thought to be the result of bleeding within the brain (hemorrhagic stroke). People with this condition also have leukoencephalopathy, which is a change in a type of brain tissue called white matter that can be seen with magnetic resonance imaging (MRI).
During infancy, people with familial porencephaly typically have paralysis affecting one side of the body (infantile hemiplegia). Affected individuals may also have recurrent seizures (epilepsy), migraine headaches, speech problems, intellectual disability, and uncontrolled muscle tensing (dystonia). Some people are severely affected, and others may have no symptoms related to the brain cysts.
[Learn More in MedlinePlus]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.