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v1.0.0
ICD-10 Guide
ICD-10 CodesH16.302

H16.302

Billable

Unspecified interstitial keratitis, left eye

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

Code Description

ICD-10 H16.302 is a billable code used to indicate a diagnosis of unspecified interstitial keratitis, left eye.

Key Diagnostic Point:

Unspecified interstitial keratitis, left eye

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
Unspecified interstitial keratitis can vary in severity, requiring careful assessment and management. Diagnosis may involve ruling out infectious causes and may necessitate referral to a specialist for advanced treatment options.

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 H16.302 When
  • Ensure accurate documentation of symptoms, duration, and any previous treatments
  • Use H16
  • 302 when the specific cause of interstitial keratitis is not identified
  • Include relevant history and examination findings in the clinical documentation

Exclusion Criteria

Do NOT use H16.302 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 H16.302 is crucial for appropriate reimbursement and management of the condition. Misclassification may lead to claim denials or delays in treatment authorization.

ICD-9 vs ICD-10

Accurate coding of H16.302 is crucial for appropriate reimbursement and management of the condition. Misclassification may lead to claim denials or delays in treatment authorization.

Reimbursement & Billing Impact

reimbursement and management of the condition. Misclassification may lead to claim denials or delays in treatment authorization.

Resources

Clinical References

  • •
    American Academy of Ophthalmology - Interstitial Keratitis
  • •
    National Eye Institute - Keratitis
  • •
    American Optometric Association - Eye Health and Disease

Coding & Billing References

  • •
    American Academy of Ophthalmology - Interstitial Keratitis
  • •
    National Eye Institute - Keratitis
  • •
    American Optometric Association - Eye Health and Disease

Frequently Asked Questions

What are the common symptoms of interstitial keratitis?

Common symptoms include eye pain, redness, blurred vision, and sensitivity to light. Patients may also experience tearing or discharge.

How is interstitial keratitis treated?

Treatment may involve corticosteroids to reduce inflammation, antiviral medications if a viral cause is suspected, and supportive care to manage symptoms.

When should I refer a patient with interstitial keratitis to a specialist?

Referral to an ophthalmologist is recommended if the patient exhibits severe symptoms, does not respond to initial treatment, or if there is concern for complications.