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 CodesH16.052

H16.052

Billable

Mooren's corneal ulcer, left eye

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

Code Description

ICD-10 H16.052 is a billable code used to indicate a diagnosis of mooren's corneal ulcer, left eye.

Key Diagnostic Point:

Mooren's corneal ulcer is a rare, painful condition characterized by progressive, unilateral corneal ulceration that primarily affects the left eye in this case. Clinically, it presents with symptoms such as severe ocular pain, photophobia, tearing, and visual impairment. The anatomy involved includes the cornea, which is the transparent front part of the eye, and its associated structures such as the conjunctiva and sclera. Disease progression can lead to significant corneal thinning and perforation if left untreated, potentially resulting in vision loss. Diagnostic considerations include a thorough ocular examination, slit-lamp biomicroscopy to assess the extent of corneal involvement, and possibly corneal scraping or biopsy to rule out infectious etiologies. The diagnosis is often confirmed based on clinical findings and the exclusion of other causes of corneal ulcers, such as infections, autoimmune disorders, or trauma. Early recognition and management are crucial to prevent complications and preserve vision.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires differential diagnosis to rule out other corneal conditions.
  • Treatment complexity: May involve topical medications, surgical interventions, or referral to specialists.
  • Documentation requirements: Detailed clinical notes and imaging may be necessary to support the diagnosis.
  • Coding specificity: Requires precise coding to differentiate from other corneal ulcer types.

Audit Risk Factors

  • Common coding errors: Misidentifying the eye affected or confusing with other ulcer types.
  • Documentation gaps: Incomplete clinical notes that do not support the diagnosis or treatment plan.
  • Billing challenges: Potential denials due to lack of specificity in documentation or coding.

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

Cornea and external disease specialists

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

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

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Mooren's corneal ulcer has significant clinical implications, as it can lead to vision loss and decreased quality of life for affected individuals. The condition is rare, but its impact on population health is notable due to the potential for severe complications. Quality measures may include monitoring treatment outcomes and patient satisfaction. Understanding healthcare utilization patterns for this condition can help in resource allocation and improving care pathways for patients with corneal disorders.

ICD-9 vs ICD-10

Mooren's corneal ulcer has significant clinical implications, as it can lead to vision loss and decreased quality of life for affected individuals. The condition is rare, but its impact on population health is notable due to the potential for severe complications. Quality measures may include monitoring treatment outcomes and patient satisfaction. Understanding healthcare utilization patterns for this condition can help in resource allocation and improving care pathways for patients with corneal disorders.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that the diagnosis is clearly linked to the services provided. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity for the treatment rendered. Coders should ensure that all relevant clinical details are included in the medical record to support the diagnosis and any associated procedures. Best practices include regular training on coding updates and maintaining clear communication with healthcare providers to ensure accurate documentation.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for H00-H99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for H00-H99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by H16.052?

H16.052 specifically covers Mooren's corneal ulcer affecting the left eye. It is characterized by unilateral, painful corneal ulceration that is not associated with infectious or traumatic causes. It is important to differentiate it from other corneal ulcers, such as those caused by herpes simplex or bacterial infections.

When should H16.052 be used instead of related codes?

H16.052 should be used when the clinical presentation aligns with Mooren's corneal ulcer in the left eye, particularly when other causes of corneal ulcers have been ruled out. It is essential to document the specific characteristics of the ulcer and the absence of infectious etiology.

What documentation supports H16.052?

Documentation should include a detailed history of the patient's symptoms, results from a comprehensive eye examination, findings from slit-lamp examination, and any imaging or lab results that support the diagnosis of Mooren's corneal ulcer. Clear notes on the treatment plan and response to therapy are also critical.