ICD-10 Guide

H18

Non-billable

Other disorders of cornea

Chapter 7:Diseases of the eye and adnexa

BILLABLE STATUSNo

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED09/06/2025

Code Description

ICD-10 H18 is a used to indicate a diagnosis of other disorders of cornea.

Key Diagnostic Point:

Other disorders of cornea

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

The clinical complexity of disorders of the cornea can vary widely, ranging from mild conditions such as superficial punctate keratitis to more severe conditions like corneal dystrophies or keratoconus, which may require surgical intervention.

Specialty Focus

Medical Specialties

Ophthalmology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Optometry

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Coding Guidelines

Inclusion Criteria

Use H18 When

Ensure accurate documentation of the specific corneal disorder being treated
Include details such as the duration of symptoms, prior treatments, and any associated conditions
Use additional codes to specify complications or related conditions as necessary

Exclusion Criteria

Do NOT use H18 When

No specific exclusions found.

Related CPT Codes

CPT Code

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CPT Code

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CPT Code

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ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Proper coding of H18 can affect reimbursement rates and the ability to track patient outcomes. Accurate documentation is crucial for ensuring appropriate treatment plans and follow-up care.

ICD-9 vs ICD-10

Proper coding of H18 can affect reimbursement rates and the ability to track patient outcomes. Accurate documentation is crucial for ensuring appropriate treatment plans and follow-up care.

Reimbursement & Billing Impact

reimbursement rates and the ability to track patient outcomes. Accurate documentation is crucial for ensuring appropriate treatment plans and follow-up care.

Resources

Clinical References

•
American Academy of Ophthalmology - Corneal Disorders
•
National Eye Institute - Corneal Diseases

Coding & Billing References

•
American Academy of Ophthalmology - Corneal Disorders
•
National Eye Institute - Corneal Diseases

Frequently Asked Questions

What types of conditions fall under H18?

H18 includes various corneal disorders such as corneal dystrophies, keratitis, and corneal scarring, among others.

How do I document a corneal disorder for billing purposes?

Document the specific diagnosis, symptoms, treatment plan, and any relevant history to support the medical necessity of the services provided.

Can H18 be used for surgical procedures?

Yes, H18 can be used in conjunction with surgical codes when the procedure addresses a specific corneal disorder.