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v1.0.0
ICD-10 Guide
ICD-10 CodesH16.9

H16.9

Billable

Unspecified keratitis

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

Code Description

ICD-10 H16.9 is a billable code used to indicate a diagnosis of unspecified keratitis.

Key Diagnostic Point:

Unspecified keratitis

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
The clinical complexity of unspecified keratitis can vary significantly based on underlying causes, patient history, and potential complications. Diagnosis may require comprehensive eye examinations and additional testing to determine the specific etiology.

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 H16.9 When
  • When coding for unspecified keratitis (H16
  • 9), ensure thorough documentation of patient symptoms, history, and examination findings
  • If a specific type of keratitis is identified later, consider updating the code to reflect the specific condition

Exclusion Criteria

Do NOT use H16.9 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 H16.9 is crucial for proper reimbursement and tracking of keratitis cases. Misclassification may lead to billing denials or underpayment. It is essential for practices to maintain up-to-date coding practices to avoid financial discrepancies.

ICD-9 vs ICD-10

Accurate coding of H16.9 is crucial for proper reimbursement and tracking of keratitis cases. Misclassification may lead to billing denials or underpayment. It is essential for practices to maintain up-to-date coding practices to avoid financial discrepancies.

Reimbursement & Billing Impact

reimbursement and tracking of keratitis cases. Misclassification may lead to billing denials or underpayment. It is essential for practices to maintain up-to-date coding practices to avoid financial discrepancies.

Resources

Clinical References

  • •
    Keratitis Overview
  • •
    Clinical Practice Guidelines for Keratitis
  • •
    Understanding Keratitis: Symptoms and Treatment

Coding & Billing References

  • •
    Keratitis Overview
  • •
    Clinical Practice Guidelines for Keratitis
  • •
    Understanding Keratitis: Symptoms and Treatment

Frequently Asked Questions

What are the common symptoms of keratitis?

Common symptoms of keratitis include eye redness, pain, blurred vision, sensitivity to light, and excessive tearing or discharge.

How is keratitis diagnosed?

Keratitis is diagnosed through a comprehensive eye examination, which may include visual acuity tests, slit-lamp examination, and corneal staining.

What treatments are available for keratitis?

Treatment options for keratitis depend on the cause and may include antibiotic or antiviral eye drops, corticosteroids, and in some cases, surgical intervention.