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 CodesA36.86

A36.86

Diphtheritic conjunctivitis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 A36.86 is a billable code used to indicate a diagnosis of diphtheritic conjunctivitis.

Key Diagnostic Point:

Diphtheritic conjunctivitis is an ocular manifestation of diphtheria, a serious bacterial infection caused by Corynebacterium diphtheriae. This condition is characterized by inflammation of the conjunctiva, often accompanied by a grayish membrane that can obstruct vision and lead to complications if untreated. The infection typically arises from direct contact with respiratory secretions or contaminated surfaces. Symptoms may include redness, swelling, discharge, and pain in the affected eye. In severe cases, systemic symptoms such as fever and malaise may also be present. Prompt diagnosis and treatment are crucial to prevent complications such as corneal ulceration or systemic spread of the infection. Treatment usually involves the administration of diphtheria antitoxin and antibiotics, such as penicillin or erythromycin, to eradicate the bacteria. Resistance patterns to antibiotics can vary, making susceptibility testing important in managing the infection effectively. Given the potential for serious complications, healthcare providers must maintain a high index of suspicion for diphtheritic conjunctivitis, especially in unvaccinated populations or during outbreaks.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires knowledge of specific bacterial infections and their manifestations.
  • Differentiation from other conjunctivitis types can be challenging.
  • Documentation must clearly indicate the presence of diphtheritic infection.
  • Potential for co-infection with other pathogens complicates coding.

Audit Risk Factors

  • Inadequate documentation of the causative organism.
  • Failure to document the severity of symptoms.
  • Misclassification of conjunctivitis type.
  • Lack of evidence for antibiotic treatment prescribed.

Specialty Focus

Medical Specialties

Ophthalmology

Documentation Requirements

Detailed clinical notes on symptoms, examination findings, and treatment plans.

Common Clinical Scenarios

Patients presenting with conjunctival redness, discharge, and systemic symptoms.

Billing Considerations

Ensure documentation reflects the infectious nature of the conjunctivitis and any systemic involvement.

Infectious Disease

Documentation Requirements

Comprehensive history of exposure, vaccination status, and laboratory results.

Common Clinical Scenarios

Outbreak investigations or cases in unvaccinated populations.

Billing Considerations

Focus on the identification of the pathogen and antibiotic susceptibility.

Coding Guidelines

Inclusion Criteria

Use A36.86 When
  • According to ICD
  • 10 guidelines, A36
  • 86 should be used when the conjunctivitis is specifically due to diphtheria
  • It is essential to document the causative organism and any associated systemic symptoms
  • diphtheritic bacteria or viral infections

Exclusion Criteria

Do NOT use A36.86 When
  • Exclusion criteria include conjunctivitis caused by non

Related CPT Codes

92002CPT Code

Ophthalmological examination, new patient

Clinical Scenario

Used when a patient presents with symptoms of diphtheritic conjunctivitis for evaluation.

Documentation Requirements

Document the examination findings, including visual acuity and conjunctival assessment.

Specialty Considerations

Ophthalmologists should note any systemic symptoms that may indicate a more severe infection.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of diphtheritic conjunctivitis, improving the accuracy of data collection and reimbursement processes. This specificity aids in tracking outbreaks and understanding epidemiological trends.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of diphtheritic conjunctivitis, improving the accuracy of data collection and reimbursement processes. This specificity aids in tracking outbreaks and understanding epidemiological trends.

Reimbursement & Billing Impact

reimbursement processes. This specificity aids in tracking outbreaks and understanding epidemiological trends.

Resources

Clinical References

  • •
    CDC Diphtheria Information

Coding & Billing References

  • •
    CDC Diphtheria Information

Frequently Asked Questions

What are the common symptoms of diphtheritic conjunctivitis?

Common symptoms include redness, swelling of the conjunctiva, discharge, and the presence of a grayish membrane. Systemic symptoms such as fever and malaise may also occur.