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Home/Diagnosis/ICD-10 Coding for Hydrocephalus

ICD-10 Coding for Hydrocephalus

G91.0
G91.1
G91.2

Complete ICD-10-CM coding and documentation guide for icd-10 coding for hydrocephalus includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Water on the brain
Ventriculomegaly
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Key Information: ICD-10 Coding for Hydrocephalus

Essential facts and insights about ICD-10 Coding for Hydrocephalus

Use ICD-10 code G91.0 for communicating hydrocephalus, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Communicating hydrocephalus

Billable Code
G91.0
Billable

Diagnostic Criteria

clinical:
  • No obstruction on imaging

Applicable To

  • • CSF absorption failure

Important Notes

  • • Ensure imaging confirms no obstruction before using this code.

Obstructive hydrocephalus

Billable Code
G91.1
Billable

Applicable To

  • • Aqueductal stenosis

Important Notes

  • • Document specific site of obstruction.

Normal pressure hydrocephalus

Billable Code
G91.2
Billable

Applicable To

  • • Idiopathic normal pressure hydrocephalus

Important Notes

  • • Ensure all triad symptoms are documented.

Post-traumatic hydrocephalus

Billable Code
G91.3
Billable

Applicable To

  • • Hydrocephalus following traumatic brain injury

Important Notes

  • • Document the timeline and imaging findings post-injury.

Hydrocephalus, unspecified

Billable Code
G91.9
Billable

Important Notes

  • • Avoid using if specific type can be identified.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z98.2

Presence of cerebrospinal fluid drainage device

Use to indicate the presence of a shunt.

Frequently Asked Questions

What is the ICD-10 code for communicating hydrocephalus?

The ICD-10 code for communicating hydrocephalus is G91.0, used when CSF absorption failure occurs without obstruction.

How is normal pressure hydrocephalus coded in ICD-10?

Normal pressure hydrocephalus is coded as G91.2, requiring documentation of the clinical triad and imaging findings.

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