ICD-10 Coding for Cerebral Ventriculomegaly(G91.0, G91.1)
Complete ICD-10-CM coding and documentation guide for Cerebral Ventriculomegaly. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Cerebral Ventriculomegaly
G91.0-G91.9Primary Range
Hydrocephalus
This range covers different types of hydrocephalus, including communicating and obstructive, which are relevant to ventriculomegaly.
Congenital Hydrocephalus
This range includes congenital forms of hydrocephalus, which can present as ventriculomegaly.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| G91.0 | Communicating hydrocephalus | Use when ventriculomegaly is due to impaired CSF absorption, such as post-meningitis. |
|
| G91.1 | Obstructive hydrocephalus | Use when ventriculomegaly is due to obstruction, such as aqueductal stenosis. |
|
Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information: ICD-10 code for cerebral ventriculomegaly
Essential facts and insights about Cerebral Ventriculomegaly
Primary ICD-10-CM Codes for cerebral ventriculomegaly
Decision Criteria
clinical Criteria
- MRI shows enlarged ventricles without obstruction.
Applicable To
- Hydrocephalus due to impaired CSF absorption
Excludes
- Obstructive hydrocephalus (G91.1)
Clinical Validation Requirements
- MRI showing enlarged ventricles with normal CSF pathways
Code-Specific Risks
- Incorrectly coding when obstruction is present
Coding Notes
- Ensure imaging supports the diagnosis of communicating hydrocephalus.
G91.1 - Obstructive hydrocephalus
Use when ventriculomegaly is due to obstruction, such as aqueductal stenosis.
Applicable To
- Hydrocephalus due to aqueductal stenosis
Excludes
- Communicating hydrocephalus (G91.0)
Clinical Validation Requirements
- MRI showing obstruction in CSF pathways
Coding Notes
Document specific obstruction type and location.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Cerebral Ventriculomegaly to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code G91.0.
Impact
Clinical: May lead to inappropriate treatment., Regulatory: Increased audit risk., Financial: Potential reimbursement loss.
Mitigation Strategy
Always specify type based on imaging., Use queries to clarify documentation.
Impact
Reimbursement: May lead to reduced reimbursement due to lack of specificity., Compliance: Increased risk of audit due to unspecified coding., Data Quality: Decreases accuracy of clinical data.
Mitigation Strategy
Query provider to specify whether hydrocephalus is communicating or obstructive.
Impact
Coding G91.9 without specifying type increases audit risk.
Mitigation Strategy
Ensure documentation specifies communicating or obstructive type.
Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
Frequently Asked Questions
Common questions about ICD-10 coding for Cerebral Ventriculomegaly, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Cerebral Ventriculomegaly
Use these documentation templates to ensure complete and accurate documentation for Cerebral Ventriculomegaly. These templates include all required elements for proper coding and billing.
Post-Traumatic Ventriculomegaly
Specialty: NeurosurgeryRequired Elements
- Imaging findings
- Etiology linkage
- Functional impact
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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