ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesH16.259

H16.259

Billable

Phlyctenular keratoconjunctivitis, unspecified eye

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

Code Description

ICD-10 H16.259 is a billable code used to indicate a diagnosis of phlyctenular keratoconjunctivitis, unspecified eye.

Key Diagnostic Point:

Phlyctenular keratoconjunctivitis, unspecified eye

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
Phlyctenular keratoconjunctivitis can present with varying degrees of severity, often requiring a thorough examination and potentially complex management depending on the underlying cause and associated symptoms.

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 H16.259 When
  • Ensure accurate documentation of symptoms, duration, and any prior treatments
  • Use additional codes for associated conditions if applicable
  • Always confirm the specific eye affected if known

Exclusion Criteria

Do NOT use H16.259 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 H16.259 is crucial for appropriate reimbursement and to ensure that the patient's medical record reflects the complexity of their condition. Misclassification may lead to claim denials or underpayment.

ICD-9 vs ICD-10

Accurate coding of H16.259 is crucial for appropriate reimbursement and to ensure that the patient's medical record reflects the complexity of their condition. Misclassification may lead to claim denials or underpayment.

Reimbursement & Billing Impact

reimbursement and to ensure that the patient's medical record reflects the complexity of their condition. Misclassification may lead to claim denials or underpayment.

Resources

Clinical References

  • •
    American Academy of Ophthalmology - Phlyctenular Keratoconjunctivitis
  • •
    Medscape - Phlyctenular Keratoconjunctivitis Overview
  • •
    National Eye Institute - Conjunctivitis

Coding & Billing References

  • •
    American Academy of Ophthalmology - Phlyctenular Keratoconjunctivitis
  • •
    Medscape - Phlyctenular Keratoconjunctivitis Overview
  • •
    National Eye Institute - Conjunctivitis

Frequently Asked Questions

What are the common symptoms of phlyctenular keratoconjunctivitis?

Common symptoms include redness of the eye, tearing, photophobia, and a sensation of a foreign body in the eye.

How is phlyctenular keratoconjunctivitis treated?

Treatment typically involves topical corticosteroids and addressing any underlying infections or allergies.

Is phlyctenular keratoconjunctivitis contagious?

Phlyctenular keratoconjunctivitis itself is not contagious, but the underlying causes, such as bacterial infections, can be.