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v1.0.0
ICD-10 Guide
ICD-10 CodesH16.422

H16.422

Billable

Pannus (corneal), left eye

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

Code Description

ICD-10 H16.422 is a billable code used to indicate a diagnosis of pannus (corneal), left eye.

Key Diagnostic Point:

Pannus (corneal), left eye

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
Pannus in the left eye may present with varying degrees of visual impairment and discomfort. It requires careful assessment to determine the underlying cause and appropriate treatment options, which may include surgical intervention.

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 H16.422 When
  • Ensure accurate documentation of the patient's symptoms, visual acuity, and any prior treatments
  • Use H16
  • 422 specifically for pannus affecting the left eye
  • Document any associated conditions that may influence treatment decisions

Exclusion Criteria

Do NOT use H16.422 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

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CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Accurate coding impacts patient management and treatment planning. It also affects reimbursement rates for ophthalmological services, as well as the tracking of clinical outcomes related to corneal disorders.

ICD-9 vs ICD-10

Accurate coding impacts patient management and treatment planning. It also affects reimbursement rates for ophthalmological services, as well as the tracking of clinical outcomes related to corneal disorders.

Reimbursement & Billing Impact

reimbursement rates for ophthalmological services, as well as the tracking of clinical outcomes related to corneal disorders.

Resources

Clinical References

  • •
    American Academy of Ophthalmology - Pannus
  • •
    Corneal Disorders - Merck Manual
  • •
    National Eye Institute - Corneal Diseases

Coding & Billing References

  • •
    American Academy of Ophthalmology - Pannus
  • •
    Corneal Disorders - Merck Manual
  • •
    National Eye Institute - Corneal Diseases

Frequently Asked Questions

What are the common symptoms of pannus?

Common symptoms include blurred vision, discomfort, and the appearance of a cloudy or opaque area on the cornea.

What treatment options are available for pannus?

Treatment options may include topical medications, surgical intervention such as keratectomy, or other procedures depending on the severity and underlying cause.

How is pannus diagnosed?

Pannus is diagnosed through a comprehensive eye examination, including visual acuity tests and slit-lamp examination to assess the cornea.