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ICD-10 Coding for Obstructive Hydrocephalus(G91.1, C75.3, D33.0)

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Learn about the ICD-10 coding for obstructive hydrocephalus, including code G91.1, documentation requirements, and common coding pitfalls.

Also known as:
Non-communicating HydrocephalusAqueductal Stenosis
Related ICD-10 Code Ranges

Complete code families applicable to Obstructive Hydrocephalus

G00-G99Primary Range

Diseases of the nervous system

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Primary ICD-10-CM Codes
Obstructive hydrocephalus
G91.1Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Communicating hydrocephalusG91.0

Use when CSF flow obstruction occurs after ventricular exit.

Normal pressure hydrocephalusG91.2

Documentation & Coding Risks

Avoid these common issues when documenting Obstructive Hydrocephalus.

Documenting 'hydrocephalus' without specifying type

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Non-compliance with documentation standards., Financial: Potential for incorrect billing and reimbursement.

Mitigation

Educate clinicians on the importance of specifying hydrocephalus type., Use templates that prompt for specific details.

Using G91.1 without specifying the underlying cause

Impact

Reimbursement: May lead to incorrect DRG assignment and reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation

Always document and code the underlying cause, such as a neoplasm.

Code Sequencing

Impact

Incorrect sequencing of hydrocephalus and underlying condition codes.

Mitigation

Follow ICD-10 guidelines for code sequencing.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with G91.1.