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ICD-10 Guide
ICD-10 CodesH16.322

H16.322

Billable

Diffuse interstitial keratitis, left eye

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

Code Description

ICD-10 H16.322 is a billable code used to indicate a diagnosis of diffuse interstitial keratitis, left eye.

Key Diagnostic Point:

Diffuse interstitial keratitis, left eye

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
Diffuse interstitial keratitis can present with varying degrees of severity, requiring careful assessment and management. It may involve systemic conditions and necessitate a multidisciplinary approach.

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 H16.322 When
  • Ensure accurate documentation of symptoms, duration, and any associated systemic conditions
  • Use additional codes to specify underlying causes or related conditions as necessary

Exclusion Criteria

Do NOT use H16.322 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

CPT Code

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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 H16.322 is crucial for appropriate reimbursement and reflects the complexity of the patient's condition. Misclassification can lead to claim denials or underpayment.

ICD-9 vs ICD-10

Accurate coding of H16.322 is crucial for appropriate reimbursement and reflects the complexity of the patient's condition. Misclassification can lead to claim denials or underpayment.

Reimbursement & Billing Impact

reimbursement and reflects the complexity of the patient's condition. Misclassification can lead to claim denials or underpayment.

Resources

Clinical References

  • •
    Diffuse Interstitial Keratitis Overview
  • •
    Clinical Practice Guidelines for Keratitis
  • •
    Understanding Eye Diseases: A Comprehensive Guide

Coding & Billing References

  • •
    Diffuse Interstitial Keratitis Overview
  • •
    Clinical Practice Guidelines for Keratitis
  • •
    Understanding Eye Diseases: A Comprehensive Guide

Frequently Asked Questions

What are the common symptoms of diffuse interstitial keratitis?

Common symptoms include blurred vision, eye pain, redness, and sensitivity to light.

How is diffuse interstitial keratitis treated?

Treatment may include topical corticosteroids, antiviral medications, and addressing any underlying systemic conditions.

Can diffuse interstitial keratitis lead to vision loss?

Yes, if left untreated, it can lead to complications such as scarring of the cornea, which may result in vision loss.