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v1.0.0
ICD-10 Guide
ICD-10 CodesH16.20

H16.20

Non-billable

Unspecified keratoconjunctivitis

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

Code Description

ICD-10 H16.20 is a used to indicate a diagnosis of unspecified keratoconjunctivitis.

Key Diagnostic Point:

Unspecified keratoconjunctivitis

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
Unspecified keratoconjunctivitis can vary in complexity depending on the underlying cause, symptoms, and response to treatment. It may require further diagnostic evaluation 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 H16.20 When
  • Ensure accurate documentation of symptoms, duration, and any prior treatments
  • Use additional codes if there are specific underlying conditions or complications
  • Always verify the patient's history and perform a thorough examination

Exclusion Criteria

Do NOT use H16.20 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 H16.20 is crucial for appropriate reimbursement and to ensure that the patient's medical record reflects the condition accurately. Misclassification may lead to denied claims or inappropriate treatment plans.

ICD-9 vs ICD-10

Accurate coding of H16.20 is crucial for appropriate reimbursement and to ensure that the patient's medical record reflects the condition accurately. Misclassification may lead to denied claims or inappropriate treatment plans.

Reimbursement & Billing Impact

reimbursement and to ensure that the patient's medical record reflects the condition accurately. Misclassification may lead to denied claims or inappropriate treatment plans.

Resources

Clinical References

  • •
    Keratoconjunctivitis: Overview and Management
  • •
    American Academy of Ophthalmology: Coding for Eye Care
  • •
    Clinical Guidelines for the Management of Conjunctivitis

Coding & Billing References

  • •
    Keratoconjunctivitis: Overview and Management
  • •
    American Academy of Ophthalmology: Coding for Eye Care
  • •
    Clinical Guidelines for the Management of Conjunctivitis

Frequently Asked Questions

What are common symptoms of unspecified keratoconjunctivitis?

Common symptoms include redness of the eye, tearing, itching, and discharge. Patients may also experience discomfort or a gritty sensation in the eye.

How is unspecified keratoconjunctivitis treated?

Treatment may include artificial tears, antihistamines for allergic causes, or topical antibiotics if a bacterial infection is suspected. The specific treatment will depend on the underlying cause.

When should a patient be referred to a specialist for keratoconjunctivitis?

Referral is warranted if symptoms persist despite treatment, if there is significant vision loss, or if there are signs of complications such as corneal involvement.