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v1.0.0
ICD-10 Guide
ICD-10 CodesH16.329

H16.329

Billable

Diffuse interstitial keratitis, unspecified eye

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

Code Description

ICD-10 H16.329 is a billable code used to indicate a diagnosis of diffuse interstitial keratitis, unspecified eye.

Key Diagnostic Point:

Diffuse interstitial keratitis, unspecified eye

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
Diffuse interstitial keratitis can vary in severity, requiring careful assessment and management. It may present with symptoms such as pain, photophobia, and vision changes, necessitating a comprehensive examination and potential referral to a specialist.

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 H16.329 When
  • Ensure accurate documentation of the patient's symptoms, history, and examination findings
  • Use H16
  • 329 for unspecified eye involvement
  • If the condition is bilateral or affects specific structures, additional codes may be required

Exclusion Criteria

Do NOT use H16.329 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 H16.329 is crucial for appropriate reimbursement and tracking of keratitis cases. It impacts treatment planning and can influence the choice of therapeutic interventions.

ICD-9 vs ICD-10

Accurate coding of H16.329 is crucial for appropriate reimbursement and tracking of keratitis cases. It impacts treatment planning and can influence the choice of therapeutic interventions.

Reimbursement & Billing Impact

reimbursement and tracking of keratitis cases. It impacts treatment planning and can influence the choice of therapeutic interventions.

Resources

Clinical References

  • •
    American Academy of Ophthalmology - Keratitis Overview
  • •
    National Eye Institute - Interstitial Keratitis
  • •
    American Optometric Association - Clinical Practice Guidelines

Coding & Billing References

  • •
    American Academy of Ophthalmology - Keratitis Overview
  • •
    National Eye Institute - Interstitial Keratitis
  • •
    American Optometric Association - Clinical Practice Guidelines

Frequently Asked Questions

What are the common symptoms of diffuse interstitial keratitis?

Common symptoms include eye pain, redness, photophobia, and blurred vision. Patients may also experience tearing and discharge.

How is diffuse interstitial keratitis diagnosed?

Diagnosis typically involves a comprehensive eye examination, including visual acuity tests, slit-lamp examination, and possibly corneal imaging.

What treatments are available for diffuse interstitial keratitis?

Treatment options may include topical corticosteroids, antiviral medications, and in some cases, surgical intervention depending on the severity and underlying cause.