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v1.0.0
ICD-10 Guide
ICD-10 CodesH18.602

H18.602

Billable

Keratoconus, unspecified, left eye

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 H18.602 is a billable code used to indicate a diagnosis of keratoconus, unspecified, left eye.

Key Diagnostic Point:

Keratoconus, unspecified, left eye

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
Keratoconus is a progressive corneal disorder that can lead to significant visual impairment. Management may require specialized fitting of contact lenses or surgical intervention, adding to the complexity of care.

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 H18.602 When
  • Ensure accurate documentation of the diagnosis and any associated symptoms
  • Use additional codes for complications or associated conditions as necessary
  • Document the laterality of the condition clearly

Exclusion Criteria

Do NOT use H18.602 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Accurate coding of keratoconus is essential for appropriate reimbursement and to reflect the severity of the condition. Misclassification can lead to denied claims or inadequate treatment plans.

ICD-9 vs ICD-10

Accurate coding of keratoconus is essential for appropriate reimbursement and to reflect the severity of the condition. Misclassification can lead to denied claims or inadequate treatment plans.

Reimbursement & Billing Impact

reimbursement and to reflect the severity of the condition. Misclassification can lead to denied claims or inadequate treatment plans.

Resources

Clinical References

  • •
    Keratoconus: A Comprehensive Review
  • •
    Understanding Keratoconus
  • •
    Clinical Guidelines for Keratoconus Management

Coding & Billing References

  • •
    Keratoconus: A Comprehensive Review
  • •
    Understanding Keratoconus
  • •
    Clinical Guidelines for Keratoconus Management

Frequently Asked Questions

What are the common symptoms of keratoconus?

Common symptoms include blurred vision, increased sensitivity to light, and frequent changes in prescription glasses or contact lenses.

How is keratoconus diagnosed?

Keratoconus is diagnosed through a comprehensive eye examination, including visual acuity tests, corneal topography, and pachymetry.

What treatment options are available for keratoconus?

Treatment options include specialized contact lenses, corneal cross-linking, and in advanced cases, corneal transplant surgery.